# N–U system

> N–U system: 534 accepted literature values (heat capacity / entropy / enthalpy 380, formation 101, invariant reaction 29, phase equilibrium 23) and 0 calculated phase diagram(s) from ORCHID, each value with evidence class, source, page and quote.

HTML: https://data.orchid-project.org/systems/N-U.html · Markdown: https://data.orchid-project.org/systems/N-U.md

534 accepted literature values from 1 paper(s) (experimental 186, model 348); 0 calculated phase diagram(s). 9 further extracted value(s) not accepted by the reader-agreement checks are only in the JSON/CSV.

Data: [JSON](https://data.orchid-project.org/literature/systems/N-U.json) · [CSV](https://data.orchid-project.org/systems/N-U.csv) · [interactive explorer](https://orchid-project.org/data-explorer/#N-U) · [phases (11)](https://data.orchid-project.org/phases/pages/N-U.html) · [papers (bibliography)](https://data.orchid-project.org/bibliography/pages/systems/N-U.html) · [Markdown](https://data.orchid-project.org/systems/N-U.md)

Table: Accepted values by evidence class

| Evidence class | Values |
|---|---:|
| experimental | 186 |
| model | 348 |

Table: Accepted values by property group

| Property group | Values |
|---|---:|
| invariant reaction | 29 |
| phase transition | 1 |
| phase equilibrium | 23 |
| formation | 101 |
| heat capacity / entropy / enthalpy | 380 |

Convex hulls: [Materials Project DFT hull](https://data.orchid-project.org/hulls/dft-mp/N/N-U.json) · [OQMD DFT hull](https://data.orchid-project.org/hulls/dft-oqmd/N/N-U.json)

## Invariant reactions (literature)

Table: Invariant reactions reported in the literature for the N–U system (29)

| T (K) | Reaction / phases | Compositions (mole fraction) | Class | Source | Location | Quote |
|---:|---|---|---|---|---|---|
| 3134 | L + G \<=> (UN)(fcc_B1) | L: U 0.528 | model | [1] Chevalier 2000 | Table 1, p. 2, row 6; `ORC-PWIYAYFSNF` |  |
| 3123 | L + G \<=> (UN)(fcc_B1) | L: U 0.5 | experimental | [1] Chevalier 2000; _cites Bugl 1964_ | Table 1, p. 2, row 5; `ORC-DR2DQDJJ3L` |  |
| 3098 | L + G \<=> (UN)(fcc_B1) | L: U 0.552 | model | [1] Chevalier 2000 | Table 1, p. 2, row 4; `ORC-XS5HTSSTPN` |  |
| 3078 | L + G \<=> (UN)(fcc_B1) | L: U 0.55 | experimental | [1] Chevalier 2000; _cites Okamoto 1997_ [doi](https://doi.org/10.1007/bf02646768) | Table 1, p. 2, row 3; `ORC-A22DSE4XUC` |  |
| 3073 | L + G \<=> (UN)(fcc_B1) | L: U 0.55 | experimental | [1] Chevalier 2000; _cites Shunk 1969_ | Table 1, p. 2, row 1; `ORC-GFIG5I6KOP` |  |
| 3062 | L + G \<=> (UN)(fcc_B1) | L: U 0.575 | model | [1] Chevalier 2000 | Table 1, p. 2, row 2; `ORC-MMDSIRHWR2` |  |
| 1625 | G + (UN)(fcc_B1) \<=> β-U2N3 | β-U2N3: N 0.586777, U 0.413223 | experimental | [1] Chevalier 2000; _cites Okamoto 1997_ [doi](https://doi.org/10.1007/bf02646768) | Table 1, p. 2, row 9; `ORC-4ARDYHLPHU` |  |
| 1623 | G + (UN)(fcc_B1) \<=> β-U2N3 | β-U2N3: N 0.586777, U 0.413223 | experimental | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 1, p. 2, row 10; `ORC-T4MZJ4DVFE` |  |
| 1622 | G + (UN)(fcc_B1) \<=> β-U2N3 | β-U2N3: N 0.586777, U 0.413223 | model | [1] Chevalier 2000 | Table 1, p. 2, row 8; `ORC-BHUON5UX34` |  |
| 1618 | G + (UN)(fcc_B1) \<=> β-U2N3 | β-U2N3: N 0.586777, U 0.413223 | experimental | [1] Chevalier 2000; _cites Shunk 1969_ | Table 1, p. 2, row 7; `ORC-Q7LB2EGABQ` |  |
| 1523 | G + β-U2N3 \<=> α-U2N3 | β-U2N3: N 0.586777, U 0.413223; α-U2N3: N 0.6, U 0.4 | experimental | [1] Chevalier 2000; _cites Shunk 1969_ | Table 1, p. 2, row 11; `ORC-GAGXGBMAP7` |  |
| 1408 | congruent melting: L \<=> γ-U(bcc_A2) |  | model | [1] Chevalier 2000 | Table 1, p. 2, row 18; `ORC-CJCYFS2W3M` |  |
| 1408 | G + β-U2N3 \<=> α-U2N3 | β-U2N3: N 0.586777, U 0.413223; α-U2N3: N 0.6, U 0.4 | model | [1] Chevalier 2000 | Table 1, p. 2, row 12; `ORC-N4G2DG46HL` |  |
| 1408 | congruent melting: L \<=> γ-U(bcc_A2) |  | experimental | [1] Chevalier 2000; _cites Dinsdale 1991_ [doi](https://doi.org/10.1016/0364-5916%2891%2990030-n) | Table 1, p. 2, row 17; `ORC-QC7BCLEQ2K` |  |
| 1408 | L \<=> UN(fcc_B1) + γ-U(bcc_A2) | L: U 0.99994 | model | [1] Chevalier 2000 | Table 1, p. 2, row 20; `ORC-ZW5N4AZVR6` |  |
| 1405 | L \<=> UN(fcc_B1) + γ-U(bcc_A2) |  | experimental | [1] Chevalier 2000; _cites Okamoto 1997_ [doi](https://doi.org/10.1007/bf02646768) | Table 1, p. 2, row 23; `ORC-HRG5RXUAKS` |  |
| 1405 | G + β-U2N3 \<=> α-U2N3 | β-U2N3: N 0.586777, U 0.413223; α-U2N3: N 0.6, U 0.4 | experimental | [1] Chevalier 2000; _cites Okamoto 1997_ [doi](https://doi.org/10.1007/bf02646768) | Table 1, p. 2, row 13; `ORC-VASMDLD2ER` |  |
| 1403 | L \<=> UN(fcc_B1) + γ-U(bcc_A2) | L: U 0.99983 | experimental | [1] Chevalier 2000; _cites Shunk 1969_ | Table 1, p. 2, row 19; `ORC-THRIW3B2KU` |  |
| 1403 | L \<=> UN(fcc_B1) + γ-U(bcc_A2) |  | experimental | [1] Chevalier 2000; _cites Benz 1966_ | Table 1, p. 2, row 22; `ORC-TQJLXXMPXB` |  |
| 1403 | L \<=> UN(fcc_B1) + γ-U(bcc_A2) |  | experimental | [1] Chevalier 2000; _cites Storms 1964_ | Table 1, p. 2, row 21; `ORC-WJDXI3U4KI` |  |
| 1393 | β-U2N3 \<=> α-U2N3 + (UN)(fcc_B1) | β-U2N3: N 0.586777, U 0.413223; α-U2N3: N 0.6, U 0.4 | experimental | [1] Chevalier 2000; _cites Shunk 1969_ | Table 1, p. 2, row 14; `ORC-IEYGSOG3ZM` |  |
| 1228 | β-U2N3 \<=> α-U2N3 + (UN)(fcc_B1) | β-U2N3: N 0.586777, U 0.413223; α-U2N3: N 0.6, U 0.4 | model | [1] Chevalier 2000 | Table 1, p. 2, row 15; `ORC-42DVNJERUM` |  |
| 1213 | β-U2N3 \<=> α-U2N3 + (UN)(fcc_B1) | β-U2N3: N 0.586777, U 0.413223; α-U2N3: N 0.6, U 0.4 | experimental | [1] Chevalier 2000; _cites Okamoto 1997_ [doi](https://doi.org/10.1007/bf02646768) | Table 1, p. 2, row 16; `ORC-JZZKTG6VW3` |  |
| 1049 | polymorphic: γ-U(bcc_A2) \<=> β-U(tet) |  | experimental | [1] Chevalier 2000; _cites Dinsdale 1991_ [doi](https://doi.org/10.1016/0364-5916%2891%2990030-n) | Table 1, p. 2, row 24; `ORC-3V3UNPLVAM` |  |
| 1049 | polymorphic: γ-U(bcc_A2) \<=> β-U(tet) |  | model | [1] Chevalier 2000 | Table 1, p. 2, row 25; `ORC-OEFD4Y2BQC` |  |
| 942 | polymorphic: β-U(tet) \<=> α-U(ort_A20) | β-U(tet): N 0.6, U 0.4; α-U(ort_A20): N 0.6, U 0.4 | experimental | [1] Chevalier 2000; _cites Dinsdale 1991_ [doi](https://doi.org/10.1016/0364-5916%2891%2990030-n) | Table 1, p. 2, row 26; `ORC-56MTMSNUJB` |  |
| 942 | polymorphic: β-U(tet) \<=> α-U(ort_A20) | β-U(tet): N 0.6, U 0.4; α-U(ort_A20): N 0.6, U 0.4 | model | [1] Chevalier 2000 | Table 1, p. 2, row 27; `ORC-OYV6NUHUAR` |  |
| 938 | β-U(tet) \<=> α-U(ort_A20) + UN(fcc_B1) | α-U(ort_A20): N 0.6, U 0.4 | experimental | [1] Chevalier 2000; _cites Okamoto 1997_ [doi](https://doi.org/10.1007/bf02646768) | Table 1, p. 2, row 29; `ORC-33HGE5NRJN` |  |
| 938 | β-U(tet) \<=> α-U(ort_A20) + UN(fcc_B1) | α-U(ort_A20): N 0.6, U 0.4 | experimental | [1] Chevalier 2000; _cites Shunk 1969_ | Table 1, p. 2, row 28; `ORC-FNGYABVKO5` |  |

## Formation enthalpies

Literature values in kJ/mol-atom where the per-atom basis is known. DFT columns: the lowest-energy entry at the same composition (Materials Project 2026.04.13, OQMD v1.8; different energy references, never averaged), from [dft_parity.json](https://data.orchid-project.org/literature/dft_parity.json).

Table: Enthalpies of formation, N–U system (101)

| Phase | Compound | Value | T (K) | Class | MP DFT (kJ/mol-atom) | OQMD DFT (kJ/mol-atom) | Source | Location | Quote |
|---|---|---:|---:|---|---:|---:|---|---|---|
| N0.500U0.500(fcc_B1) | [UN](https://data.orchid-project.org/compounds/UN.html) | -148.433 kJ/mol-atom | 298.15 | experimental | -143.768 (mp-aaaaactt) | -136.591 (oqmd-4568) | [1] Chevalier 2000; _cites Oetting 1972_ [doi](https://doi.org/10.1016/0021-9614%2872%2990057-2) | Table 8, p. 6, row 6; `ORC-N4CTFGPF46` |  |
| N0.500U0.500(fcc_B1) | [UN](https://data.orchid-project.org/compounds/UN.html) | -148.428 kJ/mol-atom | 298.15 | experimental | -143.768 (mp-aaaaactt) | -136.591 (oqmd-4568) | [1] Chevalier 2000; _cites Hubbard 1962_ | Table 8, p. 6, row 5; `ORC-Q57UMMJQGM` |  |
| N0.500U0.500(fcc_B1) | [UN](https://data.orchid-project.org/compounds/UN.html) | -147.904 kJ/mol-atom | 298.15 | experimental | -143.768 (mp-aaaaactt) | -136.591 (oqmd-4568) | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 8, p. 6, row 8; `ORC-BQ4ED5A6YV` |  |
| N0.500U0.500(fcc_B1) | [UN](https://data.orchid-project.org/compounds/UN.html) | -147.176 kJ/mol-atom | 298.15 | model | -143.768 (mp-aaaaactt) | -136.591 (oqmd-4568) | [1] Chevalier 2000 | Table 8, p. 6, row 9; `ORC-ZMJXKFWIKB` |  |
| N0.500U0.500(fcc_B1) | [UN](https://data.orchid-project.org/compounds/UN.html) | -147.068 kJ/mol-atom | 298.15 | experimental | -143.768 (mp-aaaaactt) | -136.591 (oqmd-4568) | [1] Chevalier 2000; _cites Gross 1962_ | Table 8, p. 6, row 3; `ORC-7TTNMCTCQJ` |  |
| N0.500U0.500(fcc_B1) | [UN](https://data.orchid-project.org/compounds/UN.html) | -146.649 kJ/mol-atom | 298.15 | experimental | -143.768 (mp-aaaaactt) | -136.591 (oqmd-4568) | [1] Chevalier 2000; _cites Gross 1962_ | Table 8, p. 6, row 4; `ORC-TMDZWZQOW5` |  |
| N0.500U0.500(fcc_B1) | [UN](https://data.orchid-project.org/compounds/UN.html) | -145.603 kJ/mol-atom | 298.15 | experimental | -143.768 (mp-aaaaactt) | -136.591 (oqmd-4568) | [1] Chevalier 2000; _cites Gross 1962_ | Table 8, p. 6, row 2; `ORC-ETNK6FZWRI` |  |
| N0.500U0.500(fcc_B1) | [UN](https://data.orchid-project.org/compounds/UN.html) | -145.368 kJ/mol-atom | 298.15 | experimental | -143.768 (mp-aaaaactt) | -136.591 (oqmd-4568) | [1] Chevalier 2000; _cites Johnson 1981_ [doi](https://doi.org/10.1016/0021-9614%2881%2990127-0) | Table 8, p. 6, row 7; `ORC-C5DD6ORKOW` |  |
| N0.500U0.500(fcc_B1) | [UN](https://data.orchid-project.org/compounds/UN.html) | -143.302 kJ/mol-atom | 298.15 | experimental | -143.768 (mp-aaaaactt) | -136.591 (oqmd-4568) | [1] Chevalier 2000; _cites Neumann 1932_ [doi](https://doi.org/10.1002/zaac.19322070204) | Table 8, p. 6, row 1; `ORC-LMA2OLIQAJ` |  |
| N0.587U0.413 (β-N3U2) |  | -147.161 kJ/mol-atom | 298.15 | experimental |  |  | [1] Chevalier 2000; _cites Johnson 1981_ [doi](https://doi.org/10.1016/0021-9614%2881%2990127-0) | Table 8, p. 6, row 16; `ORC-5T7ZJSZEKX` |  |
| N0.587U0.413 (β-N3U2) |  | -140.272 kJ/mol-atom | 298.15 | model |  |  | [1] Chevalier 2000 | Table 8, p. 6, row 17; `ORC-U4XBYKND6B` |  |
| N1.5-1.75U1 (α-N3U2) | [U2N3](https://data.orchid-project.org/compounds/U2N3.html) | -148.21 kJ/mol-atom | 298.15 | experimental | -154.818 (mp-aaaabhdb) | -145.953 (oqmd-39168) | [1] Chevalier 2000; _cites OOHare 1968_ | Table 8, p. 6, row 12; `ORC-ROU6CONODF.4923d5` |  |
| N1.5–1.75U1 (α-N3U2) | [U2N3](https://data.orchid-project.org/compounds/U2N3.html) | -150.19 kJ/mol-atom | 298.15 | experimental | -154.818 (mp-aaaabhdb) | -145.953 (oqmd-39168) | [1] Chevalier 2000; _cites OOHare 1968_ | Table 8, p. 6, row 10; `ORC-4RFLXGRIHH.4b6579` |  |
| N1.5–1.75U1 (α-N3U2) | [U2N3](https://data.orchid-project.org/compounds/U2N3.html) | -146.662 kJ/mol-atom | 298.15 | experimental | -154.818 (mp-aaaabhdb) | -145.953 (oqmd-39168) | [1] Chevalier 2000; _cites Johnson 1981_ [doi](https://doi.org/10.1016/0021-9614%2881%2990127-0) | Table 8, p. 6, row 14; `ORC-C4QXGL6KIH.a0d3a4` |  |
| N1.5–1.75U1 (α-N3U2) | [U2N3](https://data.orchid-project.org/compounds/U2N3.html) | -146.41 kJ/mol-atom | 298.15 | experimental | -154.818 (mp-aaaabhdb) | -145.953 (oqmd-39168) | [1] Chevalier 2000; _cites Johnson 1981_ [doi](https://doi.org/10.1016/0021-9614%2881%2990127-0) | Table 8, p. 6, row 13; `ORC-3OIZNRNNZO.73c47a` |  |
| N1.5–1.75U1 (α-N3U2) | [U2N3](https://data.orchid-project.org/compounds/U2N3.html) | -146.362 kJ/mol-atom | 298.15 | experimental | -154.818 (mp-aaaabhdb) | -145.953 (oqmd-39168) | [1] Chevalier 2000; _cites OOHare 1968_ | Table 8, p. 6, row 11; `ORC-VS34WSTTH4.71d659` |  |
| UN(fcc_B1) |  | -306.95 kJ/mol (basis unstated) | 1500 | model |  |  | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 41; `ORC-5GQRLGNVCP.06407d` |  |
| UN(fcc_B1) |  | -306.863 kJ/mol (basis unstated) | 1600 | model |  |  | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 44; `ORC-IX5WGAJ5F4.d20b5b` |  |
| UN(fcc_B1) |  | -306.677 kJ/mol (basis unstated) | 1700 | model |  |  | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 47; `ORC-RTDML32YMQ.1e828e` |  |
| UN(fcc_B1) |  | -306.562 kJ/mol (basis unstated) | 1500 | model |  |  | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 40; `ORC-4SOGFDL7KD.99e4c0` |  |
| UN(fcc_B1) |  | -306.311 kJ/mol (basis unstated) | 1600 | model |  |  | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 43; `ORC-PRQWN3JCBT.6577d0` |  |
| UN(fcc_B1) |  | -306.211 kJ/mol (basis unstated) | 1700 | model |  |  | [1] Chevalier 2000 | Table 7, p. 5, row 48; `ORC-LKYFGZBRXA.7c92b4` |  |
| UN(fcc_B1) |  | -306.166 kJ/mol (basis unstated) | 1600 | model |  |  | [1] Chevalier 2000 | Table 7, p. 5, row 45; `ORC-ONMVX3CFAV.b7b70b` |  |
| UN(fcc_B1) |  | -306.092 kJ/mol (basis unstated) | 1800 | model |  |  | [1] Chevalier 2000 | Table 7, p. 5, row 51; `ORC-UIV6IILKMF.5d7f4e` |  |
| UN(fcc_B1) |  | -306 kJ/mol (basis unstated) | 1900 | model |  |  | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 53; `ORC-XZOTMQ4ZD6.8a12c4` |  |
| UN(fcc_B1) |  | -305.997 kJ/mol (basis unstated) | 1500 | model |  |  | [1] Chevalier 2000 | Table 7, p. 5, row 42; `ORC-BJGF5L5MTK.dc77b1` |  |
| UN(fcc_B1) |  | -305.892 kJ/mol (basis unstated) | 1700 | model |  |  | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 46; `ORC-EHRWJQKTP4.3fb9a5` |  |
| UN(fcc_B1) |  | -305.771 kJ/mol (basis unstated) | 1900 | model |  |  | [1] Chevalier 2000 | Table 7, p. 5, row 54; `ORC-VLJIN2MRXV.0b99dd` |  |
| UN(fcc_B1) |  | -305.507 kJ/mol (basis unstated) | 2000 | model |  |  | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 56; `ORC-52RQVLZ5NB.81aeda` |  |
| UN(fcc_B1) |  | -305.348 kJ/mol (basis unstated) | 1800 | model |  |  | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 49; `ORC-4XH42DLLB2.7feeb5` |  |
| UN(fcc_B1) |  | -305.208 kJ/mol (basis unstated) | 2000 | model |  |  | [1] Chevalier 2000 | Table 7, p. 5, row 57; `ORC-3HHMH36S53.a8452b` |  |
| UN(fcc_B1) |  | -304.91 kJ/mol (basis unstated) | 2100 | model |  |  | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 59; `ORC-LNWODEFYWQ.868186` |  |
| UN(fcc_B1) |  | -304.734 kJ/mol (basis unstated) | 1800 | model |  |  | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 50; `ORC-P5AJUCQA7L.2115fa` |  |
| UN(fcc_B1) |  | -304.595 kJ/mol (basis unstated) | 1900 | model |  |  | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 52; `ORC-AI5HECBJVG.a35487` |  |
| UN(fcc_B1) |  | -304.366 kJ/mol (basis unstated) | 2100 | model |  |  | [1] Chevalier 2000 | Table 7, p. 5, row 60; `ORC-6BSG5BHR4O.8cbe37` |  |
| UN(fcc_B1) |  | -304.211 kJ/mol (basis unstated) | 2200 | model |  |  | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 62; `ORC-GFKMCLRFEF.e8fce1` |  |
| UN(fcc_B1) |  | -303.675 kJ/mol (basis unstated) | 2000 | model |  |  | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 55; `ORC-3GYMTOBNQH.4c3742` |  |
| UN(fcc_B1) |  | -303.405 kJ/mol (basis unstated) | 2300 | model |  |  | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 65; `ORC-DRR7MSRJUQ.1579b2` |  |
| UN(fcc_B1) |  | -303.205 kJ/mol (basis unstated) | 2200 | model |  |  | [1] Chevalier 2000 | Table 7, p. 5, row 63; `ORC-ZBRMXSH2WB.22f0ac` |  |
| UN(fcc_B1) |  | -302.587 kJ/mol (basis unstated) | 2100 | model |  |  | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 58; `ORC-LI2XULSDDT.698b38` |  |
| UN(fcc_B1) |  | -302.491 kJ/mol (basis unstated) | 2400 | model |  |  | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 68; `ORC-JFFIIXGOWD.50f914` |  |
| UN(fcc_B1) |  | -301.686 kJ/mol (basis unstated) | 2300 | model |  |  | [1] Chevalier 2000 | Table 7, p. 5, row 66; `ORC-KCH4RPOTAH.fb9a78` |  |
| UN(fcc_B1) |  | -301.474 kJ/mol (basis unstated) | 2500 | model |  |  | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 71; `ORC-BH7JSZTY2C.86e4d3` |  |
| UN(fcc_B1) |  | -301.248 kJ/mol (basis unstated) | 2200 | model |  |  | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 61; `ORC-DWRRWUWX22.ca6d10` |  |
| UN(fcc_B1) |  | -300.83 kJ/mol (basis unstated) | 1100 | model |  |  | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 28; `ORC-E6766S2BVR.0ebb2b` |  |
| UN(fcc_B1) |  | -300.579 kJ/mol (basis unstated) | 1200 | model |  |  | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 31; `ORC-ZMSL42X7D4.df5022` |  |
| UN(fcc_B1) |  | -300.383 kJ/mol (basis unstated) | 1100 | model |  |  | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 29; `ORC-SKGLS2K2EW.8ba5bf` |  |
| UN(fcc_B1) |  | -300.244 kJ/mol (basis unstated) | 1300 | model |  |  | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 34; `ORC-R4N5BRFF2U.59a5fd` |  |
| UN(fcc_B1) |  | -299.771 kJ/mol (basis unstated) | 2400 | model |  |  | [1] Chevalier 2000 | Table 7, p. 5, row 69; `ORC-TRIKBLFNR3.678f27` |  |
| UN(fcc_B1) |  | -299.742 kJ/mol (basis unstated) | 2300 | model |  |  | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 64; `ORC-B2E4WUYKGC.a700aa` |  |
| UN(fcc_B1) |  | -299.742 kJ/mol (basis unstated) | 1400 | model |  |  | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 37; `ORC-CGEQHS4LYV.fa541a` |  |
| UN(fcc_B1) |  | -299.644 kJ/mol (basis unstated) | 1200 | model |  |  | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 32; `ORC-ELJVGLJTF5.d669b4` |  |
| UN(fcc_B1) |  | -298.882 kJ/mol (basis unstated) | 1100 | model |  |  | [1] Chevalier 2000 | Table 7, p. 5, row 30; `ORC-UOULZBT4PW.d1ef0c` |  |
| UN(fcc_B1) |  | -298.809 kJ/mol (basis unstated) | 1300 | model |  |  | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 35; `ORC-FKCL5UBT2Z.3afbb7` |  |
| UN(fcc_B1) |  | -298.135 kJ/mol (basis unstated) | 1200 | model |  |  | [1] Chevalier 2000 | Table 7, p. 5, row 33; `ORC-ELDFMT3MP2.7b9e5f` |  |
| UN(fcc_B1) |  | -298.026 kJ/mol (basis unstated) | 2400 | model |  |  | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 67; `ORC-NIZWTIHP3F.ed179c` |  |
| UN(fcc_B1) |  | -297.881 kJ/mol (basis unstated) | 1400 | model |  |  | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 38; `ORC-DVTJMOZ2NU.8f88da` |  |
| UN(fcc_B1) |  | -297.418 kJ/mol (basis unstated) | 2500 | model |  |  | [1] Chevalier 2000 | Table 7, p. 5, row 72; `ORC-ACZCW42HVZ.15baf9` |  |
| UN(fcc_B1) |  | -297.414 kJ/mol (basis unstated) | 1300 | model |  |  | [1] Chevalier 2000 | Table 7, p. 5, row 36; `ORC-LED4ZD2QMT.d4ebea` |  |
| UN(fcc_B1) |  | -296.682 kJ/mol (basis unstated) | 1400 | model |  |  | [1] Chevalier 2000 | Table 7, p. 5, row 39; `ORC-WNH3R6LAVA.af0ad6` |  |
| UN(fcc_B1) |  | -296.395 kJ/mol (basis unstated) | 1000 | model |  |  | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 25; `ORC-WGH6GKJYHF.725fb8` |  |
| UN(fcc_B1) |  | -296.06 kJ/mol (basis unstated) | 2500 | model |  |  | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 70; `ORC-ZUWU5AHHLO.3c5acb` |  |
| UN(fcc_B1) |  | -296.05 kJ/mol (basis unstated) | 1000 | model |  |  | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 26; `ORC-DASR4TJX7D.72c456` |  |
| UN(fcc_B1) |  | -295.809 kJ/mol (basis unstated) | 298.15 | model |  |  | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 2; `ORC-LG4IJGLNK3.a589e8` |  |
| UN(fcc_B1) |  | -295.809 kJ/mol (basis unstated) | 300 | model |  |  | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 4; `ORC-NRUUCUMUCY.5c9c5f` |  |
| UN(fcc_B1) |  | -295.809 kJ/mol (basis unstated) | 298.15 | model |  |  | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 1; `ORC-OQ2NS7DMFT.75f953` |  |
| UN(fcc_B1) |  | -295.798 kJ/mol (basis unstated) | 300 | model |  |  | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 5; `ORC-CPM5ZX4VOK.7f8457` |  |
| UN(fcc_B1) |  | -295.136 kJ/mol (basis unstated) | 400 | model |  |  | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 8; `ORC-INVA6V4CB7.b1b584` |  |
| UN(fcc_B1) |  | -295.056 kJ/mol (basis unstated) | 400 | model |  |  | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 7; `ORC-LBK75XCB3L.90b0e0` |  |
| UN(fcc_B1) |  | -294.775 kJ/mol (basis unstated) | 3000 | model |  |  | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 83; `ORC-NNST36Y6NV.b9e930` |  |
| UN(fcc_B1) |  | -294.705 kJ/mol (basis unstated) | 1000 | model |  |  | [1] Chevalier 2000 | Table 7, p. 5, row 27; `ORC-TM3GV6XZ4M.7ccdbf` |  |
| UN(fcc_B1) |  | -294.591 kJ/mol (basis unstated) | 2600 | model |  |  | [1] Chevalier 2000 | Table 7, p. 5, row 74; `ORC-CJX32L35M4.719c92` |  |
| UN(fcc_B1) |  | -294.414 kJ/mol (basis unstated) | 500 | model |  |  | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 11; `ORC-3WS3XJF5TJ.b225f0` |  |
| UN(fcc_B1) |  | -294.354 kJ/mol (basis unstated) | 298.15 | model |  |  | [1] Chevalier 2000; _cites THERMODATA_ | Table 12, p. 10, row 2; `ORC-CG5HEFMZ7J` |  |
| UN(fcc_B1) |  | -294.353 kJ/mol (basis unstated) | 298.15 | model |  |  | [1] Chevalier 2000 | Table 7, p. 5, row 3; `ORC-EDDCF35Y2J.b5ac55` |  |
| UN(fcc_B1) |  | -294.353 kJ/mol (basis unstated) | 300 | model |  |  | [1] Chevalier 2000 | Table 7, p. 5, row 6; `ORC-KMM6PPAA3P.519a08` |  |
| UN(fcc_B1) |  | -294.261 kJ/mol (basis unstated) | 500 | model |  |  | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 10; `ORC-T6LGYKDNRS.43625c` |  |
| UN(fcc_B1) |  | -293.842 kJ/mol (basis unstated) | 2600 | model |  |  | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 73; `ORC-TK22S57VFU.16146e` |  |
| UN(fcc_B1) |  | -293.773 kJ/mol (basis unstated) | 600 | model |  |  | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 14; `ORC-X76PDDB6I5.b8b9b8` |  |
| UN(fcc_B1) |  | -293.697 kJ/mol (basis unstated) | 400 | model |  |  | [1] Chevalier 2000 | Table 7, p. 5, row 9; `ORC-CCGTFUNZHM.82e15a` |  |
| UN(fcc_B1) |  | -293.675 kJ/mol (basis unstated) | 600 | model |  |  | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 13; `ORC-VHEE3D7KG7.9b66c4` |  |
| UN(fcc_B1) |  | -293.382 kJ/mol (basis unstated) | 700 | model |  |  | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 16; `ORC-PFQQSPDWEK.0a87de` |  |
| UN(fcc_B1) |  | -293.382 kJ/mol (basis unstated) | 900 | model |  |  | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 22; `ORC-YTN5HOSUA6.f22ebb` |  |
| UN(fcc_B1) |  | -293.305 kJ/mol (basis unstated) | 700 | model |  |  | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 17; `ORC-RBVWYTMM3H.5a4d06` |  |
| UN(fcc_B1) |  | -293.298 kJ/mol (basis unstated) | 800 | model |  |  | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 19; `ORC-SJPFWQEQHD.5399ed` |  |
| UN(fcc_B1) |  | -293.18 kJ/mol (basis unstated) | 900 | model |  |  | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 23; `ORC-6MGJCMGLS5.895598` |  |
| UN(fcc_B1) |  | -293.089 kJ/mol (basis unstated) | 800 | model |  |  | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 20; `ORC-7Q3LCXL36F.0f7f9d` |  |
| UN(fcc_B1) |  | -293.061 kJ/mol (basis unstated) | 500 | model |  |  | [1] Chevalier 2000 | Table 7, p. 5, row 12; `ORC-OSRKYME3YH.4537de` |  |
| UN(fcc_B1) |  | -292.566 kJ/mol (basis unstated) | 600 | model |  |  | [1] Chevalier 2000 | Table 7, p. 5, row 15; `ORC-XKPHE7ZU3B.0aaf7c` |  |
| UN(fcc_B1) |  | -292.247 kJ/mol (basis unstated) | 700 | model |  |  | [1] Chevalier 2000 | Table 7, p. 5, row 18; `ORC-XKCDW6OSC7.9db473` |  |
| UN(fcc_B1) |  | -292.108 kJ/mol (basis unstated) | 900 | model |  |  | [1] Chevalier 2000 | Table 7, p. 5, row 24; `ORC-64HK7HDO2G.821af5` |  |
| UN(fcc_B1) |  | -292.101 kJ/mol (basis unstated) | 800 | model |  |  | [1] Chevalier 2000 | Table 7, p. 5, row 21; `ORC-F6S7TIFTXF.05d2d2` |  |
| UN(fcc_B1) |  | -291.374 kJ/mol (basis unstated) | 2700 | model |  |  | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 75; `ORC-K2SQUDE2ZK.c4571d` |  |
| UN(fcc_B1) |  | -291.249 kJ/mol (basis unstated) | 2700 | model |  |  | [1] Chevalier 2000 | Table 7, p. 5, row 76; `ORC-W7NUD2BQTV.55f4fa` |  |
| UN(fcc_B1) |  | -288.696 kJ/mol (basis unstated) | 2800 | model |  |  | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 77; `ORC-SQOVCAED3M.04ded1` |  |
| UN(fcc_B1) |  | -287.353 kJ/mol (basis unstated) | 2800 | model |  |  | [1] Chevalier 2000 | Table 7, p. 5, row 78; `ORC-7XCT3FJ6M2.caed5f` |  |
| UN(fcc_B1) |  | -286.669 kJ/mol (basis unstated) | 2900 | model |  |  | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 80; `ORC-P7CBF573OS` |  |
| UN(fcc_B1) |  | -285.725 kJ/mol (basis unstated) | 2900 | model |  |  | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 79; `ORC-X5LVFVF5YO.b59df3` |  |
| UN(fcc_B1) |  | -282.864 kJ/mol (basis unstated) | 2900 | model |  |  | [1] Chevalier 2000 | Table 7, p. 5, row 81; `ORC-PY7QTTSI37.6026ae` |  |
| UN(fcc_B1) |  | -282.462 kJ/mol (basis unstated) | 3000 | model |  |  | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 82; `ORC-U4TG6YQWFX.db7422` |  |
| UN(fcc_B1) |  | -277.743 kJ/mol (basis unstated) | 3000 | model |  |  | [1] Chevalier 2000 | Table 7, p. 5, row 84; `ORC-GZLMPS3ZHX.ecfaac` |  |

## Other properties

### Phase transition (1)

Table: Phase transition, N–U system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Phase transition | 3123 K | 3123 | congruent transformation | experimental | [1] Chevalier 2000; _cites Bugl 1964_ | p. 6; `ORC-SP3R5JC7HW` | “Cast specimens of UN were heated in a controlled nitrogen-pressure apparatus in order to study the decomposition behaviour: at pressures of nitrogen below 2.5 atm, UN decomposed at temperatures below 3123 K (2850°C), while at pressures greater than 2.5 atm, it melted congruently at 3123 K (2850°C).” |

### Phase equilibrium (23)

Table: Phase equilibrium, N–U system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Phase composition |  | 1773 | N1-xU1(fcc_B1) + L + N1−xU1(fcc_B1); _N1-xU1(fcc_B1): N 0.4898, U 0.5102; L: N 0.00405, U 0.99595; N1−xU1(fcc_B1): N 0.4898, U 0.5102_ | experimental | [1] Chevalier 2000; _cites Benz 1966_ | Table 3, p. 3, row 5; `ORC-YY7WYCXM6Z` |  |
| Phase composition |  | 1943 | N1-xU1(fcc_B1) + L + N1−xU1(fcc_B1); _N1-xU1(fcc_B1): N 0.48187, U 0.51813; L: N 0.0106, U 0.9894; N1−xU1(fcc_B1): N 0.48187, U 0.51813_ | experimental | [1] Chevalier 2000; _cites Benz 1966_ | Table 3, p. 3, row 6; `ORC-QXOBDZS4DJ` |  |
| Phase composition |  | 1960 | N1-xU1(fcc_B1) + L + N1−xU1(fcc_B1); _N1-xU1(fcc_B1): N 0.48718, U 0.51282; L: N 0.01156, U 0.98844; N1−xU1(fcc_B1): N 0.48718, U 0.51282_ | experimental | [1] Chevalier 2000; _cites Benz 1966_ | Table 3, p. 3, row 7; `ORC-6O2ZQZWCDU` |  |
| Phase composition |  | 2070 | N1-xU1(fcc_B1) + L + N1−xU1(fcc_B1); _N1-xU1(fcc_B1): N 0.47644, U 0.52356; L: N 0.01964, U 0.98036; N1−xU1(fcc_B1): N 0.47644, U 0.52356_ | experimental | [1] Chevalier 2000; _cites Benz 1966_ | Table 3, p. 3, row 9; `ORC-MUOOIIRL2Q` |  |
| Phase composition |  | 2070 | N1-xU1(fcc_B1) + L + N1−xU1(fcc_B1); _N1-xU1(fcc_B1): N 0.47917, U 0.52083; L: N 0.01964, U 0.98036; N1−xU1(fcc_B1): N 0.47917, U 0.52083_ | experimental | [1] Chevalier 2000; _cites Benz 1966_ | Table 3, p. 3, row 8; `ORC-P6B2KKLTUK` |  |
| Phase composition |  | 2073 | N1-xU1(fcc_B1) + L + N1−xU1(fcc_B1); _N1-xU1(fcc_B1): N 0.48187, U 0.51813; L: N 0.01991, U 0.98009; N1−xU1(fcc_B1): N 0.48187, U 0.51813_ | experimental | [1] Chevalier 2000; _cites Benz 1966_ | Table 3, p. 3, row 10; `ORC-54AN5XVQIP` |  |
| Phase composition |  | 2085 | N1-xU1(fcc_B1) + L + N1−xU1(fcc_B1); _N1-xU1(fcc_B1): N 0.47917, U 0.52083; L: N 0.02101, U 0.97899; N1−xU1(fcc_B1): N 0.47917, U 0.52083_ | experimental | [1] Chevalier 2000; _cites Benz 1966_ | Table 3, p. 3, row 11; `ORC-YOMXS7GSWD` |  |
| Phase composition |  | 2273 | L + N1-xU1(fcc_B1) + N1−xU1(fcc_B1); _L: N 0.04, U 0.96; N1-xU1(fcc_B1): N 0.48, U 0.52; N1−xU1(fcc_B1): N 0.48, U 0.52_ | experimental | [1] Chevalier 2000; _cites Benz 1966_ | Table 3, p. 3, row 1; `ORC-ISHDTE25F2` |  |
| Phase composition |  | 2373 | L + N1-xU1(fcc_B1) + N1−xU1(fcc_B1); _L: N 0.083, U 0.917; N1-xU1(fcc_B1): N 0.47, U 0.53; N1−xU1(fcc_B1): N 0.47, U 0.53_ | experimental | [1] Chevalier 2000; _cites Benz 1966_ | Table 3, p. 3, row 2; `ORC-DVXBW5SGNL` |  |
| Phase composition |  | 2823 | L + N1-xU1(fcc_B1) + N1−xU1(fcc_B1); _L: N 0.34, U 0.66; N1-xU1(fcc_B1): N 0.47, U 0.53; N1−xU1(fcc_B1): N 0.47, U 0.53_ | experimental | [1] Chevalier 2000; _cites Benz 1966_ | Table 3, p. 3, row 3; `ORC-FWSOFZDUGI` |  |
| Phase composition |  | 2885 | L + N1-xU1(fcc_B1) + N1−xU1(fcc_B1); _L: N 0.37, U 0.63; N1-xU1(fcc_B1): N 0.46, U 0.54; N1−xU1(fcc_B1): N 0.46, U 0.54_ | experimental | [1] Chevalier 2000; _cites Benz 1966_ | Table 3, p. 3, row 4; `ORC-HR4NHWM7T6` |  |
| Phase composition |  | 2932 | N1-xU1(fcc_B1) + L + N1−xU1(fcc_B1); _N1-xU1(fcc_B1): N 0.46524, U 0.53476; L: N 0.31421, U 0.68579; N1−xU1(fcc_B1): N 0.46524, U 0.53476_ | experimental | [1] Chevalier 2000; _cites Benz 1966_ | Table 3, p. 3, row 12; `ORC-H6K6WMWQFN` |  |
| Phase composition |  | 2992 | N1-xU1(fcc_B1) + L + N1−xU1(fcc_B1); _N1-xU1(fcc_B1): N 0.46809, U 0.53191; L: N 0.3591, U 0.6409; N1−xU1(fcc_B1): N 0.46809, U 0.53191_ | experimental | [1] Chevalier 2000; _cites Benz 1966_ | Table 3, p. 3, row 13; `ORC-FVNLW543OQ` |  |
| Phase composition |  | 2998 | N1-xU1(fcc_B1) + L + N1−xU1(fcc_B1); _N1-xU1(fcc_B1): N 0.4709, U 0.5291; L: N 0.36382, U 0.63618; N1−xU1(fcc_B1): N 0.4709, U 0.5291_ | experimental | [1] Chevalier 2000; _cites Benz 1966_ | Table 3, p. 3, row 14; `ORC-JNWZY4MLPO` |  |
| Phase composition |  | 3024 | N1-xU1(fcc_B1) + L + N1−xU1(fcc_B1); _N1-xU1(fcc_B1): N 0.48718, U 0.51282; L: N 0.38477, U 0.61523; N1−xU1(fcc_B1): N 0.48718, U 0.51282_ | experimental | [1] Chevalier 2000; _cites Benz 1966_ | Table 3, p. 3, row 15; `ORC-YN2U33QLWY` |  |
| Phase composition |  | 3092 | N1-xU1(fcc_B1) + L + N1−xU1(fcc_B1); _N1-xU1(fcc_B1): N 0.49239, U 0.50761; L: N 0.49, U 0.51; N1−xU1(fcc_B1): N 0.49239, U 0.50761_ | experimental | [1] Chevalier 2000; _cites Benz 1966_ | Table 3, p. 3, row 20; `ORC-SBTFKUJJQA` |  |
| Phase composition |  | 3093 | N1-xU1(fcc_B1) + L + N1−xU1(fcc_B1); _N1-xU1(fcc_B1): N 0.49495, U 0.50505; L: N 0.49, U 0.51; N1−xU1(fcc_B1): N 0.49495, U 0.50505_ | experimental | [1] Chevalier 2000; _cites Benz 1966_ | Table 3, p. 3, row 21; `ORC-C7EED6BGWM` |  |
| Phase composition |  | 3098 | N1-xU1(fcc_B1) + L + N1−xU1(fcc_B1); _N1-xU1(fcc_B1): N 0.49239, U 0.50761; L: N 0.49, U 0.51; N1−xU1(fcc_B1): N 0.49239, U 0.50761_ | experimental | [1] Chevalier 2000; _cites Benz 1966_ | Table 3, p. 3, row 22; `ORC-DEAKZPRNWH` |  |
| Phase composition |  | 3103 | N1-xU1(fcc_B1) + L + N1−xU1(fcc_B1); _N1-xU1(fcc_B1): N 0.49495, U 0.50505; L: N 0.49, U 0.51; N1−xU1(fcc_B1): N 0.49495, U 0.50505_ | experimental | [1] Chevalier 2000; _cites Benz 1966_ | Table 3, p. 3, row 23; `ORC-L3X2226CEC` |  |
| Phase composition |  | 3108 | N1-xU1(fcc_B1) + L + N1−xU1(fcc_B1); _N1-xU1(fcc_B1): N 0.48718, U 0.51282; L: N 0.45812, U 0.54188; N1−xU1(fcc_B1): N 0.48718, U 0.51282_ | experimental | [1] Chevalier 2000; _cites Benz 1966_ | Table 3, p. 3, row 16; `ORC-B6GDMY7GSC` |  |
| Phase composition |  | 3109 | N1-xU1(fcc_B1) + L + N1−xU1(fcc_B1); _N1-xU1(fcc_B1): N 0.4898, U 0.5102; L: N 0.45905, U 0.54095; N1−xU1(fcc_B1): N 0.4898, U 0.5102_ | experimental | [1] Chevalier 2000; _cites Benz 1966_ | Table 3, p. 3, row 17; `ORC-SACFMUN72L` |  |
| Phase composition |  | 3113 | N1-xU1(fcc_B1) + L + N1−xU1(fcc_B1); _N1-xU1(fcc_B1): N 0.49495, U 0.50505; L: N 0.46276, U 0.53724; N1−xU1(fcc_B1): N 0.49495, U 0.50505_ | experimental | [1] Chevalier 2000; _cites Benz 1966_ | Table 3, p. 3, row 18; `ORC-45KFISJ2O7` |  |
| Phase composition |  | 3126 | N1-xU1(fcc_B1) + L + N1−xU1(fcc_B1); _N1-xU1(fcc_B1): N 0.49239, U 0.50761; L: N 0.47499, U 0.52501; N1−xU1(fcc_B1): N 0.49239, U 0.50761_ | experimental | [1] Chevalier 2000; _cites Benz 1966_ | Table 3, p. 3, row 19; `ORC-LNMWEXPFDL` |  |

### Heat capacity / entropy / enthalpy (380)

Table: Heat capacity / entropy / enthalpy, N–U system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Entropy; _printed: S°298.15 K_ | 31.21 J/mol-atom/K | 298.15 | N0.500U0.500(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 8, p. 6, row 25; `ORC-ERNETRPAYO` |  |
| Entropy; _printed: S°298.15 K_ | 31.213 J/mol-atom/K | 298.15 | N0.500U0.500(fcc_B1); _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Hayes 1990_ [doi](https://doi.org/10.1016/0022-3115%2890%2990377-y) | Table 8, p. 6, row 24; `ORC-NCSRLE3QHL` |  |
| Entropy; _printed: S°298.15 K_ | 31.108 J/mol-atom/K | 298.15 | N0.500U0.500(fcc_B1); _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Counsell 1966_ [doi](https://doi.org/10.1039/tf9666201736) | Table 8, p. 6, row 22; `ORC-O3CAEECHC5` |  |
| Entropy; _printed: ΔS°f298.15 K_ | -41.793 J/(g at. K) | 298.15 | N0.500U0.500(fcc_B1); _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Matsui 1987_ | Table 8, p. 6, row 19; `ORC-PCANOKOWAY` |  |
| Entropy; _printed: ΔS°f298.15 K_ | -41.793 J/(g at. K) | 298.15 | N0.500U0.500(fcc_B1); _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 8, p. 6, row 18; `ORC-S5QXQF5SLA` |  |
| Entropy; _printed: S°298.15 K_ | 31.213 J/mol-atom/K | 298.15 | N0.500U0.500(fcc_B1); _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 8, p. 6, row 21; `ORC-T7PRWSYLIO` |  |
| Entropy; _printed: S°298.15 K_ | 31.317 J/mol-atom/K | 298.15 | N0.500U0.500(fcc_B1); _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Westrum 1966_ [doi](https://doi.org/10.1063/1.1727621) | Table 8, p. 6, row 23; `ORC-TUA7HPPOZV` |  |
| Entropy; _printed: ΔS°f298.15 K_ | -41.792 J/(g at. K) | 298.15 | N0.500U0.500(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 8, p. 6, row 20; `ORC-ZMCPVHDDE4` |  |
| Entropy; _printed: S°298.15 K_ | 25 J/mol-atom/K | 298.15 | N1.5-1.75U1 (α-N3U2) | model | [1] Chevalier 2000 | Table 8, p. 6, row 29; `ORC-2ANWHINVAS.3381cf` |  |
| Entropy; _printed: S°298.15 K_ | 24.123 J/mol-atom/K | 298.15 | N1.5-1.75U1 (α-N3U2) | experimental | [1] Chevalier 2000; _cites Counsell 1966_ [doi](https://doi.org/10.1039/tf9666201736) | Table 8, p. 6, row 27; `ORC-ERH7HWKPMG.876fde` |  |
| Entropy; _printed: S°298.15 K_ | 24.337 J/mol-atom/K | 298.15 | N1.5-1.75U1 (α-N3U2) | model | [1] Chevalier 2000 | Table 8, p. 6, row 28; `ORC-WKDHU7TIXC.18f8ce` |  |
| Entropy; _printed: S°298.15 K_ | 25.104 J/mol-atom/K | 298.15 | N1.5–1.75U1 (α-N3U2) | experimental | [1] Chevalier 2000; _cites Counsell 1966_ [doi](https://doi.org/10.1039/tf9666201736) | Table 8, p. 6, row 26; `ORC-7OATHQG5ZO.1413c6` |  |
| Entropy; _printed: S° 298.15 K_ | 62.42 J/mol (basis unstated)/K | 298.15 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites THERMODATA_ | Table 12, p. 10, row 3; `ORC-7KULOGKDFZ` |  |
| Entropy; _printed: ΔS°f(UN)_ | -83.584 J/(mol K) | 298.15 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 7, p. 5, row 3; `ORC-EDDCF35Y2J.426f7f` |  |
| Entropy; _printed: ΔS°f(UN)_ | -83.53 J/(mol K) | 298.15 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 2; `ORC-LG4IJGLNK3.37b397` |  |
| Entropy; _printed: ΔS°f(UN)_ | -83.554 J/(mol K) | 298.15 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 1; `ORC-OQ2NS7DMFT.42622f` |  |
| Entropy; _printed: ΔS°f(UN)_ | -83.5 J/(mol K) | 300 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 5; `ORC-CPM5ZX4VOK.8d4075` |  |
| Entropy; _printed: ΔS°f(UN)_ | -83.55 J/(mol K) | 300 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 7, p. 5, row 6; `ORC-KMM6PPAA3P.fbc1d0` |  |
| Entropy; _printed: ΔS°f(UN)_ | -83.513 J/(mol K) | 300 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 4; `ORC-NRUUCUMUCY.c696f5` |  |
| Entropy; _printed: ΔS°f(UN)_ | -81.702 J/(mol K) | 400 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 7, p. 5, row 9; `ORC-CCGTFUNZHM.b74381` |  |
| Entropy; _printed: ΔS°f(UN)_ | -81.61 J/(mol K) | 400 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 8; `ORC-INVA6V4CB7.c9c375` |  |
| Entropy; _printed: ΔS°f(UN)_ | -81.337 J/(mol K) | 400 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 7; `ORC-LBK75XCB3L.41c85b` |  |
| Entropy; _printed: ΔS°f(UN)_ | -79.98 J/(mol K) | 500 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 11; `ORC-3WS3XJF5TJ.4b07bc` |  |
| Entropy; _printed: ΔS°f(UN)_ | -80.278 J/(mol K) | 500 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 7, p. 5, row 12; `ORC-OSRKYME3YH.3bd048` |  |
| Entropy; _printed: ΔS°f(UN)_ | -79.58 J/(mol K) | 500 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 10; `ORC-T6LGYKDNRS.c8fed5` |  |
| Entropy; _printed: ΔS°f(UN)_ | -78.534 J/(mol K) | 600 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 13; `ORC-VHEE3D7KG7.32efad` |  |
| Entropy; _printed: ΔS°f(UN)_ | -78.79 J/(mol K) | 600 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 14; `ORC-X76PDDB6I5.aae8fb` |  |
| Entropy; _printed: ΔS°f(UN)_ | -79.371 J/(mol K) | 600 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 7, p. 5, row 15; `ORC-XKPHE7ZU3B.b0d355` |  |
| Entropy; _printed: ΔS°f(UN)_ | -78.073 J/(mol K) | 700 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 16; `ORC-PFQQSPDWEK.8cc39e` |  |
| Entropy; _printed: ΔS°f(UN)_ | -78.08 J/(mol K) | 700 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 17; `ORC-RBVWYTMM3H.73bc0d` |  |
| Entropy; _printed: ΔS°f(UN)_ | -78.876 J/(mol K) | 700 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 7, p. 5, row 18; `ORC-XKCDW6OSC7.ecc8ad` |  |
| Entropy; _printed: ΔS°f(UN)_ | -77.79 J/(mol K) | 800 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 20; `ORC-7Q3LCXL36F.a70267` |  |
| Entropy; _printed: ΔS°f(UN)_ | -78.678 J/(mol K) | 800 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 7, p. 5, row 21; `ORC-F6S7TIFTXF.c2b043` |  |
| Entropy; _printed: ΔS°f(UN)_ | -77.948 J/(mol K) | 800 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 19; `ORC-SJPFWQEQHD.2b5c8d` |  |
| Entropy; _printed: ΔS°f(UN)_ | -78.685 J/(mol K) | 900 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 7, p. 5, row 24; `ORC-64HK7HDO2G.d35f2d` |  |
| Entropy; _printed: ΔS°f(UN)_ | -77.88 J/(mol K) | 900 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 23; `ORC-6MGJCMGLS5.9d13b8` |  |
| Entropy; _printed: ΔS°f(UN)_ | -78.073 J/(mol K) | 900 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 22; `ORC-YTN5HOSUA6.60f361` |  |
| Entropy; _printed: ΔS°f(UN)_ | -80.95 J/(mol K) | 1000 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 26; `ORC-DASR4TJX7D.ba87e7` |  |
| Entropy; _printed: ΔS°f(UN)_ | -81.45 J/(mol K) | 1000 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 7, p. 5, row 27; `ORC-TM3GV6XZ4M.df1e73` |  |
| Entropy; _printed: ΔS°f(UN)_ | -81.253 J/(mol K) | 1000 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 25; `ORC-WGH6GKJYHF.80c648` |  |
| Entropy; _printed: ΔS°f(UN)_ | -85.479 J/(mol K) | 1100 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 28; `ORC-E6766S2BVR.035bb6` |  |
| Entropy; _printed: ΔS°f(UN)_ | -84.86 J/(mol K) | 1100 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 29; `ORC-SKGLS2K2EW.5d67c2` |  |
| Entropy; _printed: ΔS°f(UN)_ | -85.437 J/(mol K) | 1100 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 7, p. 5, row 30; `ORC-UOULZBT4PW.6a038c` |  |
| Entropy; _printed: ΔS°f(UN)_ | -84.787 J/(mol K) | 1200 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 7, p. 5, row 33; `ORC-ELDFMT3MP2.f93eb3` |  |
| Entropy; _printed: ΔS°f(UN)_ | -84.22 J/(mol K) | 1200 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 32; `ORC-ELJVGLJTF5.78d923` |  |
| Entropy; _printed: ΔS°f(UN)_ | -85.27 J/(mol K) | 1200 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 31; `ORC-ZMSL42X7D4.84e8a9` |  |
| Entropy; _printed: ΔS°f(UN)_ | -83.55 J/(mol K) | 1300 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 35; `ORC-FKCL5UBT2Z.00aa94` |  |
| Entropy; _printed: ΔS°f(UN)_ | -84.21 J/(mol K) | 1300 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 7, p. 5, row 36; `ORC-LED4ZD2QMT.a0baf3` |  |
| Entropy; _printed: ΔS°f(UN)_ | -84.977 J/(mol K) | 1300 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 34; `ORC-R4N5BRFF2U.a7b1b3` |  |
| Entropy; _printed: ΔS°f(UN)_ | -84.642 J/(mol K) | 1400 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 37; `ORC-CGEQHS4LYV.56a662` |  |
| Entropy; _printed: ΔS°f(UN)_ | -82.87 J/(mol K) | 1400 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 38; `ORC-DVTJMOZ2NU.06950c` |  |
| Entropy; _printed: ΔS°f(UN)_ | -83.667 J/(mol K) | 1400 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 7, p. 5, row 39; `ORC-WNH3R6LAVA.cca83a` |  |
| Entropy; _printed: ΔS°f(UN)_ | -89.496 J/(mol K) | 1500 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 40; `ORC-4SOGFDL7KD.abfbaa` |  |
| Entropy; _printed: ΔS°f(UN)_ | -89.31 J/(mol K) | 1500 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 41; `ORC-5GQRLGNVCP.6bbf8d` |  |
| Entropy; _printed: ΔS°f(UN)_ | -90.278 J/(mol K) | 1500 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 7, p. 5, row 42; `ORC-BJGF5L5MTK.125541` |  |
| Entropy; _printed: ΔS°f(UN)_ | -89.26 J/(mol K) | 1600 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 44; `ORC-IX5WGAJ5F4.b780af` |  |
| Entropy; _printed: ΔS°f(UN)_ | -90.388 J/(mol K) | 1600 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 7, p. 5, row 45; `ORC-ONMVX3CFAV.ac90cf` |  |
| Entropy; _printed: ΔS°f(UN)_ | -89.328 J/(mol K) | 1600 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 43; `ORC-PRQWN3JCBT.e6d837` |  |
| Entropy; _printed: ΔS°f(UN)_ | -89.077 J/(mol K) | 1700 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 46; `ORC-EHRWJQKTP4.7199db` |  |
| Entropy; _printed: ΔS°f(UN)_ | -90.415 J/(mol K) | 1700 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 7, p. 5, row 48; `ORC-LKYFGZBRXA.fb106b` |  |
| Entropy; _printed: ΔS°f(UN)_ | -89.14 J/(mol K) | 1700 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 47; `ORC-RTDML32YMQ.93f001` |  |
| Entropy; _printed: ΔS°f(UN)_ | -88.743 J/(mol K) | 1800 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 49; `ORC-4XH42DLLB2.3f886a` |  |
| Entropy; _printed: ΔS°f(UN)_ | -88.97 J/(mol K) | 1800 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 50; `ORC-P5AJUCQA7L.7267aa` |  |
| Entropy; _printed: ΔS°f(UN)_ | -90.347 J/(mol K) | 1800 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 7, p. 5, row 51; `ORC-UIV6IILKMF.dd9425` |  |
| Entropy; _printed: ΔS°f(UN)_ | -88.366 J/(mol K) | 1900 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 52; `ORC-AI5HECBJVG.aca2dd` |  |
| Entropy; _printed: ΔS°f(UN)_ | -90.174 J/(mol K) | 1900 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 7, p. 5, row 54; `ORC-VLJIN2MRXV.ea3acb` |  |
| Entropy; _printed: ΔS°f(UN)_ | -88.76 J/(mol K) | 1900 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 53; `ORC-XZOTMQ4ZD6.9068a3` |  |
| Entropy; _printed: ΔS°f(UN)_ | -87.906 J/(mol K) | 2000 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 55; `ORC-3GYMTOBNQH.1a185e` |  |
| Entropy; _printed: ΔS°f(UN)_ | -89.886 J/(mol K) | 2000 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 7, p. 5, row 57; `ORC-3HHMH36S53.60c271` |  |
| Entropy; _printed: ΔS°f(UN)_ | -88.51 J/(mol K) | 2000 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 56; `ORC-52RQVLZ5NB.30c0da` |  |
| Entropy; _printed: ΔS°f(UN)_ | -89.476 J/(mol K) | 2100 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 7, p. 5, row 60; `ORC-6BSG5BHR4O.056e05` |  |
| Entropy; _printed: ΔS°f(UN)_ | -87.362 J/(mol K) | 2100 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 58; `ORC-LI2XULSDDT.981641` |  |
| Entropy; _printed: ΔS°f(UN)_ | -88.22 J/(mol K) | 2100 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 59; `ORC-LNWODEFYWQ.a1ce4a` |  |
| Entropy; _printed: ΔS°f(UN)_ | -86.734 J/(mol K) | 2200 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 61; `ORC-DWRRWUWX22.4f617b` |  |
| Entropy; _printed: ΔS°f(UN)_ | -87.89 J/(mol K) | 2200 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 62; `ORC-GFKMCLRFEF.a8423b` |  |
| Entropy; _printed: ΔS°f(UN)_ | -88.937 J/(mol K) | 2200 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 7, p. 5, row 63; `ORC-ZBRMXSH2WB.1e1d19` |  |
| Entropy; _printed: ΔS°f(UN)_ | -86.065 J/(mol K) | 2300 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 64; `ORC-B2E4WUYKGC.c0ac4f` |  |
| Entropy; _printed: ΔS°f(UN)_ | -87.53 J/(mol K) | 2300 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 65; `ORC-DRR7MSRJUQ.a59e64` |  |
| Entropy; _printed: ΔS°f(UN)_ | -88.262 J/(mol K) | 2300 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 7, p. 5, row 66; `ORC-KCH4RPOTAH.2ba3b6` |  |
| Entropy; _printed: ΔS°f(UN)_ | -87.15 J/(mol K) | 2400 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 68; `ORC-JFFIIXGOWD.91686c` |  |
| Entropy; _printed: ΔS°f(UN)_ | -85.312 J/(mol K) | 2400 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 67; `ORC-NIZWTIHP3F.62aa90` |  |
| Entropy; _printed: ΔS°f(UN)_ | -87.447 J/(mol K) | 2400 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 7, p. 5, row 69; `ORC-TRIKBLFNR3.158733` |  |
| Entropy; _printed: ΔS°f(UN)_ | -86.488 J/(mol K) | 2500 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 7, p. 5, row 72; `ORC-ACZCW42HVZ.ff80b5` |  |
| Entropy; _printed: ΔS°f(UN)_ | -86.73 J/(mol K) | 2500 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 71; `ORC-BH7JSZTY2C.d04e03` |  |
| Entropy; _printed: ΔS°f(UN)_ | -84.517 J/(mol K) | 2500 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 70; `ORC-ZUWU5AHHLO.d6a478` |  |
| Entropy; _printed: ΔS°f(UN)_ | -85.379 J/(mol K) | 2600 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 7, p. 5, row 74; `ORC-CJX32L35M4.15836a` |  |
| Entropy; _printed: ΔS°f(UN)_ | -83.68 J/(mol K) | 2600 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 73; `ORC-TK22S57VFU.40ce61` |  |
| Entropy; _printed: ΔS°f(UN)_ | -82.718 J/(mol K) | 2700 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 75; `ORC-K2SQUDE2ZK.942265` |  |
| Entropy; _printed: ΔS°f(UN)_ | -84.119 J/(mol K) | 2700 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 7, p. 5, row 76; `ORC-W7NUD2BQTV.f391ac` |  |
| Entropy; _printed: ΔS°f(UN)_ | -82.703 J/(mol K) | 2800 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 7, p. 5, row 78; `ORC-7XCT3FJ6M2.184487` |  |
| Entropy; _printed: ΔS°f(UN)_ | -81.755 J/(mol K) | 2800 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 77; `ORC-SQOVCAED3M.03f6b6` |  |
| Entropy; _printed: ΔS°f(UN)_ | -81.128 J/(mol K) | 2900 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 7, p. 5, row 81; `ORC-PY7QTTSI37.ae9c37` |  |
| Entropy; _printed: ΔS°f(UN)_ | -80.709 J/(mol K) | 2900 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 79; `ORC-X5LVFVF5YO.5ba091` |  |
| Entropy; _printed: ΔS°f(UN)_ | -79.393 J/(mol K) | 3000 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 7, p. 5, row 84; `ORC-GZLMPS3ZHX.1e35a7` |  |
| Entropy; _printed: ΔS°f(UN)_ | -84.3 J/(mol K) | 3000 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 7, p. 5, row 83; `ORC-NNST36Y6NV.5a8018` |  |
| Entropy; _printed: ΔS°f(UN)_ | -79.622 J/(mol K) | 3000 | UN(fcc_B1); _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 7, p. 5, row 82; `ORC-U4TG6YQWFX.49a27e` |  |
| Heat capacity; _printed: Cp_ | 47.356 J/mol (basis unstated)/K | 298.15 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 3; `ORC-4K2XBB7ZMM.602a3a` |  |
| Heat capacity; _printed: Cp_ | 47.086 J/mol (basis unstated)/K | 298.15 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Counsell 1966_ [doi](https://doi.org/10.1039/tf9666201736) | Table 4, p. 4, row 1; `ORC-54WJJ4XAFZ` |  |
| Heat capacity; _printed: Cp_ | 47.572 J/mol (basis unstated)/K | 298.15 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 1; `ORC-B4HAGYSO5A.1e1951` |  |
| Heat capacity; _printed: Cp_ | 47.823 J/mol (basis unstated)/K | 298.15 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Takahashi 1971_ [doi](https://doi.org/10.1016/0022-3115%2871%2990059-6) | Table 4, p. 4, row 44; `ORC-JFRMZRZXPB.87908d` |  |
| Heat capacity; _printed: Cp_ | 47.82 J/mol (basis unstated)/K | 298.15 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 2; `ORC-LZOEUEVOTH.4b9745` |  |
| Heat capacity; _printed: Cp_ | 20.92 J/mol (basis unstated)/K | 298.15 | UN1.54; _alloy: U 0.393701_ | experimental | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 6, p. 5, row 1; `ORC-Z66JG3653R.32e51f` |  |
| Heat capacity; _printed: Cp_ | 47.907 J/mol (basis unstated)/K | 300 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Takahashi 1971_ [doi](https://doi.org/10.1016/0022-3115%2871%2990059-6) | Table 4, p. 4, row 45; `ORC-GLYTZU3OUX.4b8347` |  |
| Heat capacity; _printed: Cp_ | 47.656 J/mol (basis unstated)/K | 300 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 4; `ORC-KHO3GCUVNJ.35d002` |  |
| Heat capacity; _printed: Cp_ | 47.91 J/mol (basis unstated)/K | 300 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 5; `ORC-KT732XE43Z.58df51` |  |
| Heat capacity; _printed: Cp_ | 47.468 J/mol (basis unstated)/K | 300 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 6; `ORC-PDZGIW5R7D.e60e05` |  |
| Heat capacity; _printed: Cp_ | 47.16 J/mol (basis unstated)/K | 300 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Counsell 1966_ [doi](https://doi.org/10.1039/tf9666201736) | Table 4, p. 4, row 2; `ORC-V4IYMVJLJT` |  |
| Heat capacity; _printed: Cp_ | 21.035 J/mol (basis unstated)/K | 300 | UN1.54; _alloy: U 0.393701_ | experimental | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 6, p. 5, row 2; `ORC-YW2IXF4EV7.5d39e6` |  |
| Heat capacity; _printed: Cp_ | 48.24 J/mol (basis unstated)/K | 306.8 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Westrum 1966_ [doi](https://doi.org/10.1063/1.1727621) | Table 4, p. 4, row 5; `ORC-57ZQZUFMVN` |  |
| Heat capacity; _printed: Cp_ | 47.626 J/mol (basis unstated)/K | 310 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Counsell 1966_ [doi](https://doi.org/10.1039/tf9666201736) | Table 4, p. 4, row 3; `ORC-6IUYAMIBBZ` |  |
| Heat capacity; _printed: Cp_ | 48.71 J/mol (basis unstated)/K | 316.3 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Westrum 1966_ [doi](https://doi.org/10.1063/1.1727621) | Table 4, p. 4, row 6; `ORC-RWJLS7ZQR5` |  |
| Heat capacity; _printed: Cp_ | 48.08 J/mol (basis unstated)/K | 320 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Counsell 1966_ [doi](https://doi.org/10.1039/tf9666201736) | Table 4, p. 4, row 4; `ORC-MZ2Z73L7MO` |  |
| Heat capacity; _printed: Cp_ | 49.1 J/mol (basis unstated)/K | 326 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Westrum 1966_ [doi](https://doi.org/10.1063/1.1727621) | Table 4, p. 4, row 7; `ORC-WKIJ6LA5TO` |  |
| Heat capacity; _printed: Cp_ | 49.464 J/mol (basis unstated)/K | 335.8 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Westrum 1966_ [doi](https://doi.org/10.1063/1.1727621) | Table 4, p. 4, row 8; `ORC-R7ABEDDJ27` |  |
| Heat capacity; _printed: Cp_ | 49.722 J/mol (basis unstated)/K | 345.9 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Westrum 1966_ [doi](https://doi.org/10.1063/1.1727621) | Table 4, p. 4, row 9; `ORC-3G3SXKESA5` |  |
| Heat capacity; _printed: Cp_ | 49.999 J/mol (basis unstated)/K | 350 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Takahashi 1971_ [doi](https://doi.org/10.1016/0022-3115%2871%2990059-6) | Table 4, p. 4, row 46; `ORC-MSEFMBXKEZ.060479` |  |
| Heat capacity; _printed: Cp_ | 51.55 J/mol (basis unstated)/K | 400 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 8; `ORC-EW3VWELDHL.0222c9` |  |
| Heat capacity; _printed: Cp_ | 51.54 J/mol (basis unstated)/K | 400 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 9; `ORC-LS4P3VWHOZ.656e5f` |  |
| Heat capacity; _printed: Cp_ | 51.505 J/mol (basis unstated)/K | 400 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 7; `ORC-VEMKWI7WEQ.e8f14e` |  |
| Heat capacity; _printed: Cp_ | 51.547 J/mol (basis unstated)/K | 400 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Takahashi 1971_ [doi](https://doi.org/10.1016/0022-3115%2871%2990059-6) | Table 4, p. 4, row 47; `ORC-ZOLHGUATN3.cf55d8` |  |
| Heat capacity; _printed: Cp_ | 25.005 J/mol (basis unstated)/K | 400 | UN1.54; _alloy: U 0.393701_ | experimental | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 6, p. 5, row 3; `ORC-EQ4DNTDOS3.6f3c53` |  |
| Heat capacity; _printed: Cp_ | 52.76 J/mol (basis unstated)/K | 450 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Takahashi 1971_ [doi](https://doi.org/10.1016/0022-3115%2871%2990059-6) | Table 4, p. 4, row 48; `ORC-WONH47MVM6.1dd5fb` |  |
| Heat capacity; _printed: Cp_ | 53.702 J/mol (basis unstated)/K | 500 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 12; `ORC-3MV6JM3XR5.2a99b6` |  |
| Heat capacity; _printed: Cp_ | 53.764 J/mol (basis unstated)/K | 500 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Takahashi 1971_ [doi](https://doi.org/10.1016/0022-3115%2871%2990059-6) | Table 4, p. 4, row 49; `ORC-IPUILVUKVV.36bb7c` |  |
| Heat capacity; _printed: Cp_ | 53.76 J/mol (basis unstated)/K | 500 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 11; `ORC-QVKHULZRGA.719d39` |  |
| Heat capacity; _printed: Cp_ | 53.639 J/mol (basis unstated)/K | 500 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 10; `ORC-VS7LTBRIGA.2032c8` |  |
| Heat capacity; _printed: Cp_ | 27.245 J/mol (basis unstated)/K | 500 | UN1.54; _alloy: U 0.393701_ | experimental | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 6, p. 5, row 4; `ORC-WQHRN46CHN.4ad35e` |  |
| Heat capacity; _printed: Cp_ | 54.685 J/mol (basis unstated)/K | 550 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Takahashi 1971_ [doi](https://doi.org/10.1016/0022-3115%2871%2990059-6) | Table 4, p. 4, row 50; `ORC-HNITBTTKZF.9a452a` |  |
| Heat capacity; _printed: Cp_ | 55.48 J/mol (basis unstated)/K | 600 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Takahashi 1971_ [doi](https://doi.org/10.1016/0022-3115%2871%2990059-6) | Table 4, p. 4, row 51; `ORC-DFBMPQDSNT.dc41fd` |  |
| Heat capacity; _printed: Cp_ | 55.187 J/mol (basis unstated)/K | 600 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 13; `ORC-F6MG3IGXPM.dc0041` |  |
| Heat capacity; _printed: Cp_ | 55.48 J/mol (basis unstated)/K | 600 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 14; `ORC-GVETO7LHBI.c73331` |  |
| Heat capacity; _printed: Cp_ | 55.168 J/mol (basis unstated)/K | 600 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 15; `ORC-XOGLIQ6DKR.683a84` |  |
| Heat capacity; _printed: Cp_ | 28.827 J/mol (basis unstated)/K | 600 | UN1.54; _alloy: U 0.393701_ | experimental | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 6, p. 5, row 5; `ORC-GCNA22QFBJ.7ac33a` |  |
| Heat capacity; _printed: Cp_ | 56.233 J/mol (basis unstated)/K | 650 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Takahashi 1971_ [doi](https://doi.org/10.1016/0022-3115%2871%2990059-6) | Table 4, p. 4, row 52; `ORC-C5Y5S6NCRJ.e76b12` |  |
| Heat capacity; _printed: Cp_ | 56.484 J/mol (basis unstated)/K | 700 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 16; `ORC-4OLXQ6WXGQ.a70a02` |  |
| Heat capacity; _printed: Cp_ | 56.94 J/mol (basis unstated)/K | 700 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 17; `ORC-ASYWLQGA6P.8be114` |  |
| Heat capacity; _printed: Cp_ | 56.944 J/mol (basis unstated)/K | 700 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Takahashi 1971_ [doi](https://doi.org/10.1016/0022-3115%2871%2990059-6) | Table 4, p. 4, row 53; `ORC-HMY435ATMA.d2eab0` |  |
| Heat capacity; _printed: Cp_ | 56.354 J/mol (basis unstated)/K | 700 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 18; `ORC-XDLWXZJGSL.16fc48` |  |
| Heat capacity; _printed: Cp_ | 30.062 J/mol (basis unstated)/K | 700 | UN1.54; _alloy: U 0.393701_ | experimental | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 6, p. 5, row 6; `ORC-535OE5GURG.5c6ab3` |  |
| Heat capacity; _printed: Cp_ | 57.614 J/mol (basis unstated)/K | 750 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Takahashi 1971_ [doi](https://doi.org/10.1016/0022-3115%2871%2990059-6) | Table 4, p. 4, row 54; `ORC-A5LAYK2F6H.be36e3` |  |
| Heat capacity; _printed: Cp_ | 57.697 J/mol (basis unstated)/K | 800 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 19; `ORC-2QHU3BXRBD.93d52b` |  |
| Heat capacity; _printed: Cp_ | 56.902 J/mol (basis unstated)/K | 800 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Aortit 1969_ | Table 4, p. 4, row 10; `ORC-4NWGMARR47.d146ce` |  |
| Heat capacity; _printed: Cp_ | 58.24 J/mol (basis unstated)/K | 800 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 20; `ORC-5TACP4ONQJ.13d943` |  |
| Heat capacity; _printed: Cp_ | 57.436 J/mol (basis unstated)/K | 800 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 21; `ORC-FAEUYVM4F4.fde865` |  |
| Heat capacity; _printed: Cp_ | 58.241 J/mol (basis unstated)/K | 800 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Takahashi 1971_ [doi](https://doi.org/10.1016/0022-3115%2871%2990059-6) | Table 4, p. 4, row 55; `ORC-IL4CRSLZRJ.b22611` |  |
| Heat capacity; _printed: Cp_ | 31.149 J/mol (basis unstated)/K | 800 | UN1.54; _alloy: U 0.393701_ | experimental | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 6, p. 5, row 7; `ORC-3NVTLKRTEX.23324d` |  |
| Heat capacity; _printed: Cp_ | 58.869 J/mol (basis unstated)/K | 850 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Takahashi 1971_ [doi](https://doi.org/10.1016/0022-3115%2871%2990059-6) | Table 4, p. 4, row 56; `ORC-PTCKILUPXM.dbe019` |  |
| Heat capacity; _printed: Cp_ | 58.702 J/mol (basis unstated)/K | 900 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Aortit 1969_ | Table 4, p. 4, row 11; `ORC-GWPP4TJP7B.6bd2c8` |  |
| Heat capacity; _printed: Cp_ | 59.496 J/mol (basis unstated)/K | 900 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Takahashi 1971_ [doi](https://doi.org/10.1016/0022-3115%2871%2990059-6) | Table 4, p. 4, row 57; `ORC-MWC5LEGIAK.08190c` |  |
| Heat capacity; _printed: Cp_ | 58.495 J/mol (basis unstated)/K | 900 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 24; `ORC-VK6MWLF6KK.663930` |  |
| Heat capacity; _printed: Cp_ | 59.5 J/mol (basis unstated)/K | 900 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 23; `ORC-XS43WNR4W5.3f823c` |  |
| Heat capacity; _printed: Cp_ | 58.911 J/mol (basis unstated)/K | 900 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 22; `ORC-Y3H2422XMF.f45478` |  |
| Heat capacity; _printed: Cp_ | 32.121 J/mol (basis unstated)/K | 900 | UN1.54; _alloy: U 0.393701_ | experimental | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 6, p. 5, row 8; `ORC-YNQ5QCC56O.5a1366` |  |
| Heat capacity; _printed: Cp_ | 60.082 J/mol (basis unstated)/K | 950 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Takahashi 1971_ [doi](https://doi.org/10.1016/0022-3115%2871%2990059-6) | Table 4, p. 4, row 58; `ORC-WSH4DYLUZW.909f0a` |  |
| Heat capacity; _printed: Cp_ | 59.576 J/mol (basis unstated)/K | 1000 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 27; `ORC-5CZRZFBDI4.1516bc` |  |
| Heat capacity; _printed: Cp_ | 60.668 J/mol (basis unstated)/K | 1000 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Takahashi 1971_ [doi](https://doi.org/10.1016/0022-3115%2871%2990059-6) | Table 4, p. 4, row 59; `ORC-KC3N3VRANX.e4c825` |  |
| Heat capacity; _printed: Cp_ | 60.124 J/mol (basis unstated)/K | 1000 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 25; `ORC-MEFIKA7YY3.095301` |  |
| Heat capacity; _printed: Cp_ | 60.67 J/mol (basis unstated)/K | 1000 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 26; `ORC-RIMG5W66RM.46f413` |  |
| Heat capacity; _printed: Cp_ | 60.459 J/mol (basis unstated)/K | 1000 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Aortit 1969_ | Table 4, p. 4, row 12; `ORC-UFBLGOEII2.b17ad5` |  |
| Heat capacity; _printed: Cp_ | 33.027 J/mol (basis unstated)/K | 1000 | UN1.54; _alloy: U 0.393701_ | experimental | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 6, p. 5, row 9; `ORC-NU4AT5EABL.003590` |  |
| Heat capacity; _printed: Cp_ | 61.379 J/mol (basis unstated)/K | 1100 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 28; `ORC-3UKWMJZXFW.cbdfac` |  |
| Heat capacity; _printed: Cp_ | 60.703 J/mol (basis unstated)/K | 1100 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 30; `ORC-6UWUPSO2C3.91718d` |  |
| Heat capacity; _printed: Cp_ | 61.84 J/mol (basis unstated)/K | 1100 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 29; `ORC-IZDJXLAYMR.920945` |  |
| Heat capacity; _printed: Cp_ | 62.216 J/mol (basis unstated)/K | 1100 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Aortit 1969_ | Table 4, p. 4, row 13; `ORC-R4QX4VTHV6.2c4737` |  |
| Heat capacity; _printed: Cp_ | 33.9 J/mol (basis unstated)/K | 1100 | UN1.54; _alloy: U 0.393701_ | experimental | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 6, p. 5, row 10; `ORC-ZQZUGLQ6XR.aec0b8` |  |
| Heat capacity; _printed: Cp_ | 63.973 J/mol (basis unstated)/K | 1200 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Aortit 1969_ | Table 4, p. 4, row 14; `ORC-2KEUIGL4B4.b566ac` |  |
| Heat capacity; _printed: Cp_ | 61.891 J/mol (basis unstated)/K | 1200 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 33; `ORC-357VTNEVSB.81c3d2` |  |
| Heat capacity; _printed: Cp_ | 62.718 J/mol (basis unstated)/K | 1200 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 31; `ORC-C2YABDUGXD.7edcf7` |  |
| Heat capacity; _printed: Cp_ | 63.01 J/mol (basis unstated)/K | 1200 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 32; `ORC-YZZY2WHLIA.4a0255` |  |
| Heat capacity; _printed: Cp_ | 34.757 J/mol (basis unstated)/K | 1200 | UN1.54; _alloy: U 0.393701_ | experimental | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 6, p. 5, row 11; `ORC-I3BF4QBEU5.b74735` |  |
| Heat capacity; _printed: Cp_ | 63.151 J/mol (basis unstated)/K | 1300 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 36; `ORC-A2XFROCESM.cd8c46` |  |
| Heat capacity; _printed: Cp_ | 64.18 J/mol (basis unstated)/K | 1300 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 35; `ORC-DB6JLT6ZVA.57e43f` |  |
| Heat capacity; _printed: Cp_ | 64.099 J/mol (basis unstated)/K | 1300 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 34; `ORC-EICPODC7RF.9eb51e` |  |
| Heat capacity; _printed: Cp_ | 65.731 J/mol (basis unstated)/K | 1300 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Aortit 1969_ | Table 4, p. 4, row 15; `ORC-URNS7C4ZTG.2ad176` |  |
| Heat capacity; _printed: Cp_ | 35.58 J/mol (basis unstated)/K | 1300 | UN1.54; _alloy: U 0.393701_ | experimental | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 6, p. 5, row 12; `ORC-5JWYSRVLMP.16de3c` |  |
| Heat capacity; _printed: Cp_ | 65.563 J/mol (basis unstated)/K | 1400 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 37; `ORC-4SD4JPGBH5.996461` |  |
| Heat capacity; _printed: Cp_ | 65.31 J/mol (basis unstated)/K | 1400 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 38; `ORC-KJHPKL7EOA.92a28d` |  |
| Heat capacity; _printed: Cp_ | 64.487 J/mol (basis unstated)/K | 1400 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 39; `ORC-VWWDNIMZRQ.74418e` |  |
| Heat capacity; _printed: Cp_ | 67.488 J/mol (basis unstated)/K | 1400 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Aortit 1969_ | Table 4, p. 4, row 16; `ORC-YPFLF7WFUG.0a3117` |  |
| Heat capacity; _printed: Cp_ | 36.388 J/mol (basis unstated)/K | 1400 | UN1.54; _alloy: U 0.393701_ | experimental | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 6, p. 5, row 13; `ORC-RZ443J6RDW.92aa16` |  |
| Heat capacity; _printed: Cp_ | 65.904 J/mol (basis unstated)/K | 1500 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 42; `ORC-4CPN74GZ6W.1a9efa` |  |
| Heat capacity; _printed: Cp_ | 69.245 J/mol (basis unstated)/K | 1500 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Aortit 1969_ | Table 4, p. 4, row 17; `ORC-4GZ36BIPXW.dd94e7` |  |
| Heat capacity; _printed: Cp_ | 67.111 J/mol (basis unstated)/K | 1500 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 40; `ORC-C4TNOYASPI.f31310` |  |
| Heat capacity; _printed: Cp_ | 66.48 J/mol (basis unstated)/K | 1500 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 41; `ORC-HHTTF276BD.1c7329` |  |
| Heat capacity; _printed: Cp_ | 37.195 J/mol (basis unstated)/K | 1500 | UN1.54; _alloy: U 0.393701_ | experimental | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 6, p. 5, row 14; `ORC-KBEFPSJNFU.c7eb1b` |  |
| Heat capacity; _printed: Cp_ | 67.61 J/mol (basis unstated)/K | 1600 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 44; `ORC-JKPUPF63AL.65ff24` |  |
| Heat capacity; _printed: Cp_ | 71.002 J/mol (basis unstated)/K | 1600 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Aortit 1969_ | Table 4, p. 4, row 18; `ORC-PMLMRG5WCV.7fb3a4` |  |
| Heat capacity; _printed: Cp_ | 67.405 J/mol (basis unstated)/K | 1600 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 45; `ORC-QF4WRRLYTV.9b9349` |  |
| Heat capacity; _printed: Cp_ | 68.743 J/mol (basis unstated)/K | 1600 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 43; `ORC-ZAOSU42FX3.7664cb` |  |
| Heat capacity; _printed: Cp_ | 37.985 J/mol (basis unstated)/K | 1600 | UN1.54; _alloy: U 0.393701_ | experimental | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 6, p. 5, row 15; `ORC-CDS2UMO3HF.9a65b2` |  |
| Heat capacity; _printed: Cp_ | 68.993 J/mol (basis unstated)/K | 1700 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 48; `ORC-JQLQSTZBEF.0cb4ec` |  |
| Heat capacity; _printed: Cp_ | 72.76 J/mol (basis unstated)/K | 1700 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Aortit 1969_ | Table 4, p. 4, row 19; `ORC-LV6UBQY4QD.a34cd6` |  |
| Heat capacity; _printed: Cp_ | 68.74 J/mol (basis unstated)/K | 1700 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 47; `ORC-NRDXTZQ6JJ.1d70f0` |  |
| Heat capacity; _printed: Cp_ | 70.417 J/mol (basis unstated)/K | 1700 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 46; `ORC-TBGA7DTJRA.0159a8` |  |
| Heat capacity; _printed: Cp_ | 38.776 J/mol (basis unstated)/K | 1700 | UN1.54; _alloy: U 0.393701_ | experimental | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 6, p. 5, row 16; `ORC-THXOQCSIBD.0ced97` |  |
| Heat capacity; _printed: Cp_ | 72.216 J/mol (basis unstated)/K | 1800 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 49; `ORC-7A65OXPZLG.382d41` |  |
| Heat capacity; _printed: Cp_ | 70.668 J/mol (basis unstated)/K | 1800 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 51; `ORC-AWG3ATBXOP.080971` |  |
| Heat capacity; _printed: Cp_ | 74.517 J/mol (basis unstated)/K | 1800 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Aortit 1969_ | Table 4, p. 4, row 20; `ORC-DPLZ4T6D7C.04f9e1` |  |
| Heat capacity; _printed: Cp_ | 69.87 J/mol (basis unstated)/K | 1800 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 50; `ORC-J3NDZMK3J5.a29502` |  |
| Heat capacity; _printed: Cp_ | 76.274 J/mol (basis unstated)/K | 1900 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Aortit 1969_ | Table 4, p. 4, row 21; `ORC-IXVROHTIIJ.1d5de4` |  |
| Heat capacity; _printed: Cp_ | 74.099 J/mol (basis unstated)/K | 1900 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 52; `ORC-MH53FBV7ZS.df2d9c` |  |
| Heat capacity; _printed: Cp_ | 70.96 J/mol (basis unstated)/K | 1900 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 53; `ORC-RCWXZCDEML.b6f6ed` |  |
| Heat capacity; _printed: Cp_ | 72.432 J/mol (basis unstated)/K | 1900 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 54; `ORC-ZU4O7PI5AV.09886d` |  |
| Heat capacity; _printed: Cp_ | 74.285 J/mol (basis unstated)/K | 2000 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 57; `ORC-32WWL24MAA.808cfb` |  |
| Heat capacity; _printed: Cp_ | 76.023 J/mol (basis unstated)/K | 2000 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 55; `ORC-DQJTOXUVYA.452df4` |  |
| Heat capacity; _printed: Cp_ | 78.032 J/mol (basis unstated)/K | 2000 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Aortit 1969_ | Table 4, p. 4, row 22; `ORC-EPBVN54SNO.ad30bd` |  |
| Heat capacity; _printed: Cp_ | 72.09 J/mol (basis unstated)/K | 2000 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 56; `ORC-ZXDQG4HNQJ.ae46a4` |  |
| Heat capacity; _printed: Cp_ | 79.789 J/mol (basis unstated)/K | 2100 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Aortit 1969_ | Table 4, p. 4, row 23; `ORC-KWASEVIIVT.6091f1` |  |
| Heat capacity; _printed: Cp_ | 78.073 J/mol (basis unstated)/K | 2100 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 58; `ORC-LVI4EYLGCW.709c5d` |  |
| Heat capacity; _printed: Cp_ | 73.22 J/mol (basis unstated)/K | 2100 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 59; `ORC-N2BY2MCTDE.1a3f91` |  |
| Heat capacity; _printed: Cp_ | 76.229 J/mol (basis unstated)/K | 2100 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 60; `ORC-SHZUVBR5BT.2d6fd6` |  |
| Heat capacity; _printed: Cp_ | 80.207 J/mol (basis unstated)/K | 2200 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 61; `ORC-AJALOQ5PXP.ab03d8` |  |
| Heat capacity; _printed: Cp_ | 74.34 J/mol (basis unstated)/K | 2200 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 62; `ORC-GZU722BYV3.a94dd9` |  |
| Heat capacity; _printed: Cp_ | 78.263 J/mol (basis unstated)/K | 2200 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 63; `ORC-HLDHMMURAR.f21d43` |  |
| Heat capacity; _printed: Cp_ | 81.546 J/mol (basis unstated)/K | 2200 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Aortit 1969_ | Table 4, p. 4, row 24; `ORC-M234Y2WIEO.fa3b05` |  |
| Heat capacity; _printed: Cp_ | 80.39 J/mol (basis unstated)/K | 2300 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 66; `ORC-36VOI4MD5K.8406ed` |  |
| Heat capacity; _printed: Cp_ | 82.383 J/mol (basis unstated)/K | 2300 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 64; `ORC-COHYZNAANQ.5b06c3` |  |
| Heat capacity; _printed: Cp_ | 83.262 J/mol (basis unstated)/K | 2300 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Aortit 1969_ | Table 4, p. 4, row 25; `ORC-SYUWTF545X.ade7d2` |  |
| Heat capacity; _printed: Cp_ | 75.46 J/mol (basis unstated)/K | 2300 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 65; `ORC-ZM2E3RPCYY.ec184e` |  |
| Heat capacity; _printed: Cp_ | 84.684 J/mol (basis unstated)/K | 2400 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 67; `ORC-CXPXYJO3NH.4d165a` |  |
| Heat capacity; _printed: Cp_ | 76.58 J/mol (basis unstated)/K | 2400 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 68; `ORC-GZYFQ65SUY.a88f9e` |  |
| Heat capacity; _printed: Cp_ | 82.607 J/mol (basis unstated)/K | 2400 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 69; `ORC-YZPYNN2K7A.367e9d` |  |
| Heat capacity; _printed: Cp_ | 77.69 J/mol (basis unstated)/K | 2500 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 71; `ORC-MARZKWPHKB.9aabc5` |  |
| Heat capacity; _printed: Cp_ | 87.069 J/mol (basis unstated)/K | 2500 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 70; `ORC-OPOOQ26VGH.4f4833` |  |
| Heat capacity; _printed: Cp_ | 84.917 J/mol (basis unstated)/K | 2500 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 72; `ORC-UTTVBZWGQ2.0fa4e5` |  |
| Heat capacity; _printed: Cp_ | 89.538 J/mol (basis unstated)/K | 2600 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 73; `ORC-3CAX57T2UZ.849420` |  |
| Heat capacity; _printed: Cp_ | 87.318 J/mol (basis unstated)/K | 2600 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 74; `ORC-D6PA5SHREY.7d0514` |  |
| Heat capacity; _printed: Cp_ | 89.812 J/mol (basis unstated)/K | 2700 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 76; `ORC-CZZQJKTIKZ.289732` |  |
| Heat capacity; _printed: Cp_ | 92.09 J/mol (basis unstated)/K | 2700 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 75; `ORC-G77IQYI3H7.fd3b64` |  |
| Heat capacity; _printed: Cp_ | 94.726 J/mol (basis unstated)/K | 2800 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 77; `ORC-WHV3AQ6TCZ.3e806c` |  |
| Heat capacity; _printed: Cp_ | 92.397 J/mol (basis unstated)/K | 2800 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 78; `ORC-Z6LCN6HWWD.d00065` |  |
| Heat capacity; _printed: Cp_ | 97.445 J/mol (basis unstated)/K | 2900 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 79; `ORC-7SCFNUMTK3.62e313` |  |
| Heat capacity; _printed: Cp_ | 95.076 J/mol (basis unstated)/K | 2900 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 80; `ORC-W2XS3VCSRI.7d56ed` |  |
| Heat capacity; _printed: Cp_ | 100.29 J/mol (basis unstated)/K | 3000 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 81; `ORC-5LUVD674W3.ac97e7` |  |
| Heat capacity; _printed: Cp_ | 97.847 J/mol (basis unstated)/K | 3000 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 83; `ORC-U37O6WATU4.2f2483` |  |
| Heat capacity; _printed: Cp_ | 83.27 J/mol (basis unstated)/K | 3000 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 82; `ORC-UPOHGVFRQH.b60162` |  |
| Heat content; _printed: HT - H298_ | 0 J/mol | 298.15 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 3; `ORC-4K2XBB7ZMM.b3dfe8` |  |
| Heat content; _printed: HT - H298_ | 0 J/mol | 298.15 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 1; `ORC-B4HAGYSO5A.3398bb` |  |
| Heat content; _printed: HT - H298_ | 0 J/mol | 298.15 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Takahashi 1971_ [doi](https://doi.org/10.1016/0022-3115%2871%2990059-6) | Table 4, p. 4, row 44; `ORC-JFRMZRZXPB.74256c` |  |
| Heat content; _printed: HT - H298_ | 0 J/mol | 298.15 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 2; `ORC-LZOEUEVOTH.1a180a` |  |
| Heat content; _printed: HT - H298_ | 2540 J/mol | 350 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Takahashi 1971_ [doi](https://doi.org/10.1016/0022-3115%2871%2990059-6) | Table 4, p. 4, row 46; `ORC-MSEFMBXKEZ.24234c` |  |
| Heat content; _printed: HT - H298_ | 2205 J/(mol K) | 386.8 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Cordfunke 1972_ [doi](https://doi.org/10.1016/0022-3115%2872%2990031-1) | Table 4, p. 4, row 26; `ORC-EOTZEFDC2K` |  |
| Heat content; _printed: HT - H298_ | 2450 J/(mol K) | 397.8 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Cordfunke 1972_ [doi](https://doi.org/10.1016/0022-3115%2872%2990031-1) | Table 4, p. 4, row 27; `ORC-NKV6PUREGM` |  |
| Heat content; _printed: HT - H298_ | 5079 J/mol | 400 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 8; `ORC-EW3VWELDHL.2b8acf` |  |
| Heat content; _printed: HT - H298_ | 5059 J/mol | 400 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 9; `ORC-LS4P3VWHOZ.3a5084` |  |
| Heat content; _printed: HT - H298_ | 5067 J/mol | 400 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 7; `ORC-VEMKWI7WEQ.836861` |  |
| Heat content; _printed: HT - H298_ | 5079 J/mol | 400 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Takahashi 1971_ [doi](https://doi.org/10.1016/0022-3115%2871%2990059-6) | Table 4, p. 4, row 47; `ORC-ZOLHGUATN3.00a4a2` |  |
| Heat content; _printed: HT - H298_ | 3368 J/(mol K) | 433.2 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Cordfunke 1972_ [doi](https://doi.org/10.1016/0022-3115%2872%2990031-1) | Table 4, p. 4, row 28; `ORC-DA5MTYHYOX` |  |
| Heat content; _printed: HT - H298_ | 3377 J/(mol K) | 434.1 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Cordfunke 1972_ [doi](https://doi.org/10.1016/0022-3115%2872%2990031-1) | Table 4, p. 4, row 29; `ORC-YMZUN4K473` |  |
| Heat content; _printed: HT - H298_ | 7686 J/mol | 450 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Takahashi 1971_ [doi](https://doi.org/10.1016/0022-3115%2871%2990059-6) | Table 4, p. 4, row 48; `ORC-WONH47MVM6.f13c2a` |  |
| Heat content; _printed: HT - H298_ | 4102 J/(mol K) | 463.5 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Cordfunke 1972_ [doi](https://doi.org/10.1016/0022-3115%2872%2990031-1) | Table 4, p. 4, row 30; `ORC-E6MPYT7ST3` |  |
| Heat content; _printed: HT - H298_ | 4710 J/(mol K) | 485.4 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Cordfunke 1972_ [doi](https://doi.org/10.1016/0022-3115%2872%2990031-1) | Table 4, p. 4, row 31; `ORC-TQJHSCZVSZ` |  |
| Heat content; _printed: HT - H298_ | 10246 J/mol | 500 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 12; `ORC-3MV6JM3XR5.00d10a` |  |
| Heat content; _printed: HT - H298_ | 10351 J/mol | 500 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Takahashi 1971_ [doi](https://doi.org/10.1016/0022-3115%2871%2990059-6) | Table 4, p. 4, row 49; `ORC-IPUILVUKVV.c07a7e` |  |
| Heat content; _printed: HT - H298_ | 10351 J/mol | 500 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 11; `ORC-QVKHULZRGA.789210` |  |
| Heat content; _printed: HT - H298_ | 10334 J/mol | 500 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 10; `ORC-VS7LTBRIGA.9403b7` |  |
| Heat content; _printed: HT - H298_ | 5343 J/(mol K) | 508.6 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Cordfunke 1972_ [doi](https://doi.org/10.1016/0022-3115%2872%2990031-1) | Table 4, p. 4, row 32; `ORC-XQJ6RE7H3T` |  |
| Heat content; _printed: HT - H298_ | 5489 J/(mol K) | 513 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Cordfunke 1972_ [doi](https://doi.org/10.1016/0022-3115%2872%2990031-1) | Table 4, p. 4, row 33; `ORC-F542SFLLJ4` |  |
| Heat content; _printed: HT - H298_ | 6044 J/(mol K) | 531.1 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Cordfunke 1972_ [doi](https://doi.org/10.1016/0022-3115%2872%2990031-1) | Table 4, p. 4, row 34; `ORC-EGJPU7GKJA` |  |
| Heat content; _printed: HT - H298_ | 6347 J/(mol K) | 546.4 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Cordfunke 1972_ [doi](https://doi.org/10.1016/0022-3115%2872%2990031-1) | Table 4, p. 4, row 35; `ORC-SOS7TKKWO4` |  |
| Heat content; _printed: HT - H298_ | 13062 J/mol | 550 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Takahashi 1971_ [doi](https://doi.org/10.1016/0022-3115%2871%2990059-6) | Table 4, p. 4, row 50; `ORC-HNITBTTKZF.a0d23e` |  |
| Heat content; _printed: HT - H298_ | 7621 J/(mol K) | 589.3 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Cordfunke 1972_ [doi](https://doi.org/10.1016/0022-3115%2872%2990031-1) | Table 4, p. 4, row 36; `ORC-DKTA63ZFZL` |  |
| Heat content; _printed: HT - H298_ | 15816 J/mol | 600 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Takahashi 1971_ [doi](https://doi.org/10.1016/0022-3115%2871%2990059-6) | Table 4, p. 4, row 51; `ORC-DFBMPQDSNT.087bfc` |  |
| Heat content; _printed: HT - H298_ | 15778 J/mol | 600 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 13; `ORC-F6MG3IGXPM.c4b76f` |  |
| Heat content; _printed: HT - H298_ | 15816 J/mol | 600 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 14; `ORC-GVETO7LHBI.c35391` |  |
| Heat content; _printed: HT - H298_ | 15566 J/mol | 600 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 15; `ORC-XOGLIQ6DKR.80db6a` |  |
| Heat content; _printed: HT - H298_ | 8328 J/(mol K) | 617.5 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Cordfunke 1972_ [doi](https://doi.org/10.1016/0022-3115%2872%2990031-1) | Table 4, p. 4, row 37; `ORC-OA2IYHK4LW` |  |
| Heat content; _printed: HT - H298_ | 8344 J/(mol K) | 618.8 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Cordfunke 1972_ [doi](https://doi.org/10.1016/0022-3115%2872%2990031-1) | Table 4, p. 4, row 38; `ORC-IBBPGKQST3` |  |
| Heat content; _printed: HT - H298_ | 8943 J/(mol K) | 638.1 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Cordfunke 1972_ [doi](https://doi.org/10.1016/0022-3115%2872%2990031-1) | Table 4, p. 4, row 39; `ORC-R2SWVJSYNA` |  |
| Heat content; _printed: HT - H298_ | 18610 J/mol | 650 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Takahashi 1971_ [doi](https://doi.org/10.1016/0022-3115%2871%2990059-6) | Table 4, p. 4, row 52; `ORC-C5Y5S6NCRJ.71f69d` |  |
| Heat content; _printed: HT - H298_ | 9328 J/(mol K) | 654.3 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Cordfunke 1972_ [doi](https://doi.org/10.1016/0022-3115%2872%2990031-1) | Table 4, p. 4, row 40; `ORC-JNVR67Q5Q7` |  |
| Heat content; _printed: HT - H298_ | 9418 J/(mol K) | 658.5 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Cordfunke 1972_ [doi](https://doi.org/10.1016/0022-3115%2872%2990031-1) | Table 4, p. 4, row 41; `ORC-KBG73VY3D4` |  |
| Heat content; _printed: HT - H298_ | 9922 J/(mol K) | 677.9 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Cordfunke 1972_ [doi](https://doi.org/10.1016/0022-3115%2872%2990031-1) | Table 4, p. 4, row 42; `ORC-APE37M72XF` |  |
| Heat content; _printed: HT - H298_ | 21364 J/mol | 700 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 16; `ORC-4OLXQ6WXGQ.8a5c45` |  |
| Heat content; _printed: HT - H298_ | 21439 J/mol | 700 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 17; `ORC-ASYWLQGA6P.aae262` |  |
| Heat content; _printed: HT - H298_ | 21439 J/mol | 700 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Takahashi 1971_ [doi](https://doi.org/10.1016/0022-3115%2871%2990059-6) | Table 4, p. 4, row 53; `ORC-HMY435ATMA.d17226` |  |
| Heat content; _printed: HT - H298_ | 21041 J/mol | 700 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 18; `ORC-XDLWXZJGSL.4e7b32` |  |
| Heat content; _printed: HT - H298_ | 10615 J/(mol K) | 701.3 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Cordfunke 1972_ [doi](https://doi.org/10.1016/0022-3115%2872%2990031-1) | Table 4, p. 4, row 43; `ORC-NVEWPE7JKE` |  |
| Heat content; _printed: HT - H298_ | 24301 J/mol | 750 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Takahashi 1971_ [doi](https://doi.org/10.1016/0022-3115%2871%2990059-6) | Table 4, p. 4, row 54; `ORC-A5LAYK2F6H.b17f52` |  |
| Heat content; _printed: HT - H298_ | 27075 J/mol | 800 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 19; `ORC-2QHU3BXRBD.e4e422` |  |
| Heat content; _printed: HT - H298_ | 27196 J/mol | 800 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 20; `ORC-5TACP4ONQJ.3c19cc` |  |
| Heat content; _printed: HT - H298_ | 26729 J/mol | 800 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 21; `ORC-FAEUYVM4F4.fb676e` |  |
| Heat content; _printed: HT - H298_ | 27196 J/mol | 800 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Takahashi 1971_ [doi](https://doi.org/10.1016/0022-3115%2871%2990059-6) | Table 4, p. 4, row 55; `ORC-IL4CRSLZRJ.83e9b4` |  |
| Heat content; _printed: HT - H298_ | 30125 J/mol | 850 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Takahashi 1971_ [doi](https://doi.org/10.1016/0022-3115%2871%2990059-6) | Table 4, p. 4, row 56; `ORC-PTCKILUPXM.5d6db9` |  |
| Heat content; _printed: HT - H298_ | 33083 J/mol | 900 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Takahashi 1971_ [doi](https://doi.org/10.1016/0022-3115%2871%2990059-6) | Table 4, p. 4, row 57; `ORC-MWC5LEGIAK.51c6ca` |  |
| Heat content; _printed: HT - H298_ | 32700 J/mol | 900 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 24; `ORC-VK6MWLF6KK.bf19bf` |  |
| Heat content; _printed: HT - H298_ | 33082 J/mol | 900 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 23; `ORC-XS43WNR4W5.275f1e` |  |
| Heat content; _printed: HT - H298_ | 32907 J/mol | 900 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 22; `ORC-Y3H2422XMF.02a295` |  |
| Heat content; _printed: HT - H298_ | 36075 J/mol | 950 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Takahashi 1971_ [doi](https://doi.org/10.1016/0022-3115%2871%2990059-6) | Table 4, p. 4, row 58; `ORC-WSH4DYLUZW.7054c6` |  |
| Heat content; _printed: HT - H298_ | 38980 J/mol | 1000 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 27; `ORC-5CZRZFBDI4.bf1493` |  |
| Heat content; _printed: HT - H298_ | 39091 J/mol | 1000 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Takahashi 1971_ [doi](https://doi.org/10.1016/0022-3115%2871%2990059-6) | Table 4, p. 4, row 59; `ORC-KC3N3VRANX.425136` |  |
| Heat content; _printed: HT - H298_ | 38857 J/mol | 1000 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 25; `ORC-MEFIKA7YY3.54dae0` |  |
| Heat content; _printed: HT - H298_ | 39091 J/mol | 1000 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 26; `ORC-RIMG5W66RM.d6b6a2` |  |
| Heat content; _printed: HT - H298_ | 44932 J/mol | 1100 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 28; `ORC-3UKWMJZXFW.d3f1ca` |  |
| Heat content; _printed: HT - H298_ | 45264 J/mol | 1100 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 30; `ORC-6UWUPSO2C3.75dfb1` |  |
| Heat content; _printed: HT - H298_ | 45218 J/mol | 1100 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 29; `ORC-IZDJXLAYMR.2a151d` |  |
| Heat content; _printed: HT - H298_ | 51513 J/mol | 1200 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 33; `ORC-357VTNEVSB.c3e8f2` |  |
| Heat content; _printed: HT - H298_ | 51137 J/mol | 1200 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 31; `ORC-C2YABDUGXD.69b591` |  |
| Heat content; _printed: HT - H298_ | 51461 J/mol | 1200 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 32; `ORC-YZZY2WHLIA.e664b1` |  |
| Heat content; _printed: HT - H298_ | 57759 J/mol | 1300 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 36; `ORC-A2XFROCESM.9dbe07` |  |
| Heat content; _printed: HT - H298_ | 57821 J/mol | 1300 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 35; `ORC-DB6JLT6ZVA.f0f061` |  |
| Heat content; _printed: HT - H298_ | 57476 J/mol | 1300 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 34; `ORC-EICPODC7RF.21fe0b` |  |
| Heat content; _printed: HT - H298_ | 63957 J/mol | 1400 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 37; `ORC-4SD4JPGBH5.7bf8f4` |  |
| Heat content; _printed: HT - H298_ | 64295 J/mol | 1400 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 38; `ORC-KJHPKL7EOA.1a05ac` |  |
| Heat content; _printed: HT - H298_ | 64037 J/mol | 1400 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 39; `ORC-VWWDNIMZRQ.ae86e1` |  |
| Heat content; _printed: HT - H298_ | 70382 J/mol | 1500 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 42; `ORC-4CPN74GZ6W.ef9a65` |  |
| Heat content; _printed: HT - H298_ | 70592 J/mol | 1500 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 40; `ORC-C4TNOYASPI.c66290` |  |
| Heat content; _printed: HT - H298_ | 70884 J/mol | 1500 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 41; `ORC-HHTTF276BD.c4d51f` |  |
| Heat content; _printed: HT - H298_ | 77586 J/mol | 1600 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 44; `ORC-JKPUPF63AL.6fcf58` |  |
| Heat content; _printed: HT - H298_ | 76828 J/mol | 1600 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 45; `ORC-QF4WRRLYTV.3b4588` |  |
| Heat content; _printed: HT - H298_ | 77383 J/mol | 1600 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 43; `ORC-ZAOSU42FX3.622971` |  |
| Heat content; _printed: HT - H298_ | 83412 J/mol | 1700 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 48; `ORC-JQLQSTZBEF.71c7fd` |  |
| Heat content; _printed: HT - H298_ | 84402 J/mol | 1700 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 47; `ORC-NRDXTZQ6JJ.b08509` |  |
| Heat content; _printed: HT - H298_ | 84337 J/mol | 1700 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 46; `ORC-TBGA7DTJRA.aa9ff0` |  |
| Heat content; _printed: HT - H298_ | 91471 J/mol | 1800 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 49; `ORC-7A65OXPZLG.874397` |  |
| Heat content; _printed: HT - H298_ | 90171 J/mol | 1800 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 51; `ORC-AWG3ATBXOP.2c7ecb` |  |
| Heat content; _printed: HT - H298_ | 91330 J/mol | 1800 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 50; `ORC-J3NDZMK3J5.035718` |  |
| Heat content; _printed: HT - H298_ | 98784 J/mol | 1900 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 52; `ORC-MH53FBV7ZS.642548` |  |
| Heat content; _printed: HT - H298_ | 98371 J/mol | 1900 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 53; `ORC-RCWXZCDEML.3161f0` |  |
| Heat content; _printed: HT - H298_ | 97143 J/mol | 1900 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 54; `ORC-ZU4O7PI5AV.5c28de` |  |
| Heat content; _printed: HT - H298_ | 104365 J/mol | 2000 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 57; `ORC-32WWL24MAA.325b14` |  |
| Heat content; _printed: HT - H298_ | 106286 J/mol | 2000 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 55; `ORC-DQJTOXUVYA.e88366` |  |
| Heat content; _printed: HT - H298_ | 105525 J/mol | 2000 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 56; `ORC-ZXDQG4HNQJ.17cb95` |  |
| Heat content; _printed: HT - H298_ | 113993 J/mol | 2100 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 58; `ORC-LVI4EYLGCW.769110` |  |
| Heat content; _printed: HT - H298_ | 112791 J/mol | 2100 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 59; `ORC-N2BY2MCTDE.58e221` |  |
| Heat content; _printed: HT - H298_ | 111876 J/mol | 2100 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 60; `ORC-SHZUVBR5BT.b4f698` |  |
| Heat content; _printed: HT - H298_ | 121905 J/mol | 2200 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 61; `ORC-AJALOQ5PXP.e47a84` |  |
| Heat content; _printed: HT - H298_ | 120168 J/mol | 2200 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 62; `ORC-GZU722BYV3.233f36` |  |
| Heat content; _printed: HT - H298_ | 119713 J/mol | 2200 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 63; `ORC-HLDHMMURAR.1ed88d` |  |
| Heat content; _printed: HT - H298_ | 127914 J/mol | 2300 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 66; `ORC-36VOI4MD5K.5d8fcd` |  |
| Heat content; _printed: HT - H298_ | 130035 J/mol | 2300 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 64; `ORC-COHYZNAANQ.321863` |  |
| Heat content; _printed: HT - H298_ | 127658 J/mol | 2300 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 65; `ORC-ZM2E3RPCYY.e623f7` |  |
| Heat content; _printed: HT - H298_ | 138386 J/mol | 2400 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 67; `ORC-CXPXYJO3NH.a0cf41` |  |
| Heat content; _printed: HT - H298_ | 135260 J/mol | 2400 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 68; `ORC-GZYFQ65SUY.29fd3e` |  |
| Heat content; _printed: HT - H298_ | 136519 J/mol | 2400 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 69; `ORC-YZPYNN2K7A.9839de` |  |
| Heat content; _printed: HT - H298_ | 142974 J/mol | 2500 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 71; `ORC-MARZKWPHKB.ce2ae6` |  |
| Heat content; _printed: HT - H298_ | 146976 J/mol | 2500 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 70; `ORC-OPOOQ26VGH.9bb548` |  |
| Heat content; _printed: HT - H298_ | 145565 J/mol | 2500 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 72; `ORC-UTTVBZWGQ2.bb6642` |  |
| Heat content; _printed: HT - H298_ | 155804 J/mol | 2600 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 73; `ORC-3CAX57T2UZ.9b09d1` |  |
| Heat content; _printed: HT - H298_ | 155092 J/mol | 2600 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 74; `ORC-D6PA5SHREY.eac172` |  |
| Heat content; _printed: HT - H298_ | 165138 J/mol | 2700 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 76; `ORC-CZZQJKTIKZ.729e86` |  |
| Heat content; _printed: HT - H298_ | 164883 J/mol | 2700 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 75; `ORC-G77IQYI3H7.9340f1` |  |
| Heat content; _printed: HT - H298_ | 174226 J/mol | 2800 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 77; `ORC-WHV3AQ6TCZ.5e473d` |  |
| Heat content; _printed: HT - H298_ | 175741 J/mol | 2800 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 78; `ORC-Z6LCN6HWWD.63f988` |  |
| Heat content; _printed: HT - H298_ | 183832 J/mol | 2900 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 79; `ORC-7SCFNUMTK3.fe040c` |  |
| Heat content; _printed: HT - H298_ | 186942 J/mol | 2900 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 80; `ORC-W2XS3VCSRI.fd4432` |  |
| Heat content; _printed: HT - H298_ | 193719 J/mol | 3000 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 5, p. 4, row 81; `ORC-5LUVD674W3.afaf3a` |  |
| Heat content; _printed: HT - H298_ | 198779 J/mol | 3000 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000 | Table 5, p. 4, row 83; `ORC-U37O6WATU4.ab58ea` |  |
| Heat content; _printed: HT - H298_ | 183216 J/mol | 3000 | UN; _alloy: U 0.5_ | model | [1] Chevalier 2000; _cites Matsui 1987_ | Table 5, p. 4, row 82; `ORC-UPOHGVFRQH.38d7f8` |  |
| heat content from base t; _printed: HT - H800_ | 0 J/mol | 298.15 | UN1.54; _alloy: U 0.393701_ | experimental | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 6, p. 5, row 1; `ORC-Z66JG3653R.ec0726` |  |
| heat content from base t; _printed: HT - H800_ | 2362 J/mol | 400 | UN1.54; _alloy: U 0.393701_ | experimental | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 6, p. 5, row 3; `ORC-EQ4DNTDOS3.b72252` |  |
| heat content from base t; _printed: HT - H800_ | 4985 J/mol | 500 | UN1.54; _alloy: U 0.393701_ | experimental | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 6, p. 5, row 4; `ORC-WQHRN46CHN.9b4db9` |  |
| heat content from base t; _printed: HT - H800_ | 7791 J/mol | 600 | UN1.54; _alloy: U 0.393701_ | experimental | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 6, p. 5, row 5; `ORC-GCNA22QFBJ.e5264c` |  |
| heat content from base t; _printed: HT - H800_ | 10737 J/mol | 700 | UN1.54; _alloy: U 0.393701_ | experimental | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 6, p. 5, row 6; `ORC-535OE5GURG.04ba64` |  |
| heat content from base t; _printed: HT - H800_ | 0 J/mol | 800 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Aortit 1969_ | Table 4, p. 4, row 10; `ORC-4NWGMARR47.50a3f8` |  |
| heat content from base t; _printed: HT - H800_ | 13799 J/mol | 800 | UN1.54; _alloy: U 0.393701_ | experimental | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 6, p. 5, row 7; `ORC-3NVTLKRTEX.faa711` |  |
| heat content from base t; _printed: HT - H800_ | 5782 J/mol | 900 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Aortit 1969_ | Table 4, p. 4, row 11; `ORC-GWPP4TJP7B.53f4f9` |  |
| heat content from base t; _printed: HT - H800_ | 16962 J/mol | 900 | UN1.54; _alloy: U 0.393701_ | experimental | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 6, p. 5, row 8; `ORC-YNQ5QCC56O.3c7537` |  |
| heat content from base t; _printed: HT - H800_ | 11736 J/mol | 1000 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Aortit 1969_ | Table 4, p. 4, row 12; `ORC-UFBLGOEII2.d32cda` |  |
| heat content from base t; _printed: HT - H800_ | 20220 J/mol | 1000 | UN1.54; _alloy: U 0.393701_ | experimental | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 6, p. 5, row 9; `ORC-NU4AT5EABL.95bbe7` |  |
| heat content from base t; _printed: HT - H800_ | 17866 J/mol | 1100 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Aortit 1969_ | Table 4, p. 4, row 13; `ORC-R4QX4VTHV6.c5561b` |  |
| heat content from base t; _printed: HT - H800_ | 23567 J/mol | 1100 | UN1.54; _alloy: U 0.393701_ | experimental | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 6, p. 5, row 10; `ORC-ZQZUGLQ6XR.ea1f01` |  |
| heat content from base t; _printed: HT - H800_ | 24184 J/mol | 1200 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Aortit 1969_ | Table 4, p. 4, row 14; `ORC-2KEUIGL4B4.c46371` |  |
| heat content from base t; _printed: HT - H800_ | 27002 J/mol | 1200 | UN1.54; _alloy: U 0.393701_ | experimental | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 6, p. 5, row 11; `ORC-I3BF4QBEU5.0344e4` |  |
| heat content from base t; _printed: HT - H800_ | 30669 J/mol | 1300 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Aortit 1969_ | Table 4, p. 4, row 15; `ORC-URNS7C4ZTG.8e566b` |  |
| heat content from base t; _printed: HT - H800_ | 30519 J/mol | 1300 | UN1.54; _alloy: U 0.393701_ | experimental | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 6, p. 5, row 12; `ORC-5JWYSRVLMP.4cba9c` |  |
| heat content from base t; _printed: HT - H800_ | 37321 J/mol | 1400 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Aortit 1969_ | Table 4, p. 4, row 16; `ORC-YPFLF7WFUG.cacfce` |  |
| heat content from base t; _printed: HT - H800_ | 34116 J/mol | 1400 | UN1.54; _alloy: U 0.393701_ | experimental | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 6, p. 5, row 13; `ORC-RZ443J6RDW.8bc374` |  |
| heat content from base t; _printed: HT - H800_ | 44141 J/mol | 1500 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Aortit 1969_ | Table 4, p. 4, row 17; `ORC-4GZ36BIPXW.e79e5f` |  |
| heat content from base t; _printed: HT - H800_ | 37796 J/mol | 1500 | UN1.54; _alloy: U 0.393701_ | experimental | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 6, p. 5, row 14; `ORC-KBEFPSJNFU.a4a5b8` |  |
| heat content from base t; _printed: HT - H800_ | 51170 J/mol | 1600 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Aortit 1969_ | Table 4, p. 4, row 18; `ORC-PMLMRG5WCV.9579c0` |  |
| heat content from base t; _printed: HT - H800_ | 41557 J/mol | 1600 | UN1.54; _alloy: U 0.393701_ | experimental | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 6, p. 5, row 15; `ORC-CDS2UMO3HF.57810c` |  |
| heat content from base t; _printed: HT - H800_ | 58367 J/mol | 1700 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Aortit 1969_ | Table 4, p. 4, row 19; `ORC-LV6UBQY4QD.73df4b` |  |
| heat content from base t; _printed: HT - H800_ | 45395 J/mol | 1700 | UN1.54; _alloy: U 0.393701_ | experimental | [1] Chevalier 2000; _cites Tagawa 1974_ | Table 6, p. 5, row 16; `ORC-THXOQCSIBD.7e2549` |  |
| heat content from base t; _printed: HT - H800_ | 65731 J/mol | 1800 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Aortit 1969_ | Table 4, p. 4, row 20; `ORC-DPLZ4T6D7C.68971f` |  |
| heat content from base t; _printed: HT - H800_ | 73262 J/mol | 1900 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Aortit 1969_ | Table 4, p. 4, row 21; `ORC-IXVROHTIIJ.690cb0` |  |
| heat content from base t; _printed: HT - H800_ | 80960 J/mol | 2000 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Aortit 1969_ | Table 4, p. 4, row 22; `ORC-EPBVN54SNO.1f51d8` |  |
| heat content from base t; _printed: HT - H800_ | 88868 J/mol | 2100 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Aortit 1969_ | Table 4, p. 4, row 23; `ORC-KWASEVIIVT.44084a` |  |
| heat content from base t; _printed: HT - H800_ | 96943 J/mol | 2200 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Aortit 1969_ | Table 4, p. 4, row 24; `ORC-M234Y2WIEO.271b05` |  |
| heat content from base t; _printed: HT - H800_ | 105186 J/mol | 2300 | UN; _alloy: U 0.5_ | experimental | [1] Chevalier 2000; _cites Aortit 1969_ | Table 4, p. 4, row 25; `ORC-SYUWTF545X.c02f90` |  |

## Sources

Reporting papers the values were read from (a value cited from another work names that work in its row).

1. P.-Y. Chevalier, E. Fischer, B. Cheynet, Thermodynamic modelling of the N–U system, Journal of Nuclear Materials 280, 136-150 (2000). [doi:10.1016/s0022-3115(00)00043-x](https://doi.org/10.1016/s0022-3115%2800%2900043-x)

## Please cite

- R. Arróyave, J. Saal, D. Shin, ORCHID-Values: thermodynamic and phase-equilibrium values read from the literature (version 2026.10; Version 1, machine-extracted), Zenodo (2026). https://doi.org/10.5281/zenodo.23735569
- R. Arróyave, J. Saal, D. Shin, ORCHID-Hulls: binary convex hulls (Materials Project, OQMD, assessed CALPHAD) (version 2026.10), Zenodo (2026). https://doi.org/10.5281/zenodo.23735891
- R. Arróyave, J. Saal, D. Shin, ORCHID data: umbrella record of the ORCHID datasets (version 2026.10; Version 1, machine-extracted), Zenodo (2026). https://doi.org/10.5281/zenodo.23736065

Also cite the original source of every value you use (paper_citation / paper_doi, and cited_dois for values the paper cites from earlier work); A. Jain et al., The Materials Project: A materials genome approach to accelerating materials innovation, APL Materials 1 (2013) 011002, https://doi.org/10.1063/1.4812323 (CC BY 4.0); J. E. Saal et al., JOM 65 (2013) 1501, https://doi.org/10.1007/s11837-013-0755-4 and S. Kirklin et al., npj Comput. Mater. 1 (2015) 15010, https://doi.org/10.1038/npjcompumats.2015.10 (CC BY 4.0); B. Hallstedt, The SGTE collection of binary datasets, Calphad 89 (2025) 102833, https://doi.org/10.1016/j.calphad.2025.102833 (CC BY 4.0), and the original assessment named in each file.

Version 1, machine-extracted: values were read by language-model readers constrained to quote their source and checked automatically, and the release was then audited on the printed pages by adversarial audits, an independent second review of fit-facing records and a preliminary human review of a frozen sample. Flags such as accepted and ESPEI-ready record screening results, not certification; known issues are listed in the release notes.

```bibtex
@misc{orchid_literature_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Values: thermodynamic and phase-equilibrium values read from the literature}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735569},
  url       = {https://doi.org/10.5281/zenodo.23735569},
  note      = {Version 1, machine-extracted}
}

@misc{orchid_hulls_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Hulls: binary convex hulls (Materials Project, OQMD, assessed CALPHAD)}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735891},
  url       = {https://doi.org/10.5281/zenodo.23735891}
}

@misc{orchid_data_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID data: umbrella record of the ORCHID datasets}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23736065},
  url       = {https://doi.org/10.5281/zenodo.23736065},
  note      = {Version 1, machine-extracted}
}
```

---

Derived data CC BY 4.0 ([licence](https://creativecommons.org/licenses/by/4.0/)): cite ORCHID ([CITATION.cff](https://data.orchid-project.org/CITATION.cff)) and the original sources. Quotes are short excerpts kept so that each value can be checked; they remain under the publishers' copyright and are not relicensed. Source papers, page images and full text are not redistributed. Field reference: [SCHEMA.md](https://data.orchid-project.org/literature/SCHEMA.md). Machine-readable guide: [llms.txt](https://data.orchid-project.org/llms.txt). Found an error? The report link of a value (Markdown: its id, ORC-..., in the Location column) opens a pre-filled GitHub issue, https://github.com/orchid-calphad/orchid-data/issues/new?template=report-value-error.yml&record_id=\<id>, carrying only the record id, source and value; [how to contribute](https://orchid-project.org/contribute/).