Cu–O system

355 accepted literature values from 2 paper(s) (experimental 280, model 75); 3 calculated phase diagram(s). 22 further extracted value(s) not accepted by the reader-agreement checks are only in the JSON/CSV.

Data: JSON · CSV · interactive explorer · interactive phase diagram · phases (10) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	280
model	75

Accepted values by property group
Property group	Values
invariant reaction	54
phase transition	13
formation	39
heat capacity / entropy / enthalpy	37
activity / EMF / Gibbs energy	38
model expression	174

Calculated phase diagrams

Binary phase diagrams calculated with pycalphad 0.11.2 from the SGTE binary collection (Hallstedt 2025, CC BY 4.0). Evidence class: model.

Assessments with a calculated phase diagram
TDB file	Assessment	SHA-256	Links
CuO-14Mag.tdb	H. Magnusson, K. Frisk, Calphad, 47, 148-60(2014). doi:10.1016/j.calphad.2014.09.004	`c359243f819163487dee47e2c28697d846db9d0456d9ede289d84dd7b0ed5f3a`	viewer · TDB · JSON
CuO-92Bou.tdb	A. Boudene, K. Hack, A. Mohammad, D. Neuschuetz, E. Zimmermann, Z. Metallkd., 83, 663-68(1992). doi:10.1515/ijmr-1992-830905	`01c48e87b93fb30f817411232690b694a306f3b90f586840e3ef2d4366420673`	viewer · TDB · JSON
CuO-94Hal.tdb	B. Hallstedt, D. Risold and L.J. Gauckler, J. Phase Equilib., 15, 483-99(1994). doi:10.1007/BF02649399	`59102ffec95449e3ff1a60226d9369eb93d38b3ce8ef47fbd7332ab32b087b2a`	viewer · TDB · JSON

Convex hulls: Materials Project DFT hull · OQMD DFT hull

Invariant reactions (literature)

Invariant reactions reported in the literature for the Cu–O system (54)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
1498	monotectic: L2 -> L1 + Cu2O (monotectic)	L2: O 0.096; L1: O 0.309	experimental	[1] Hallstedt 1994 cites Taskinen 1984	Table 2, p. 6, row 21 report
1498	monotectic: L2 -> L1 + Cu2O (monotectic)	L2: O 0.092; L1: O 0.311	model	[1] Hallstedt 1994	Table 2, p. 6, row 24 report
1497	monotectic: L2 -> L1 + Cu2O (monotectic)	L2: O 0.099; L1: O 0.307	model	[1] Hallstedt 1994 cites Boudbne 1992	Table 2, p. 6, row 23 report
1496	monotectic: L2 -> L1 + Cu2O (monotectic)		experimental	[1] Hallstedt 1994 cites Kemori 1979 doi	Table 2, p. 6, row 18 report
1495	monotectic: L2 -> L1 + Cu2O (monotectic)	L2: O 0.096; L1: O 0.308	experimental	[1] Hallstedt 1994 cites Kayahara 1981 doi	Table 2, p. 6, row 20 report
1495	monotectic: L2 -> L1 + Cu2O (monotectic)		experimental	[1] Hallstedt 1994 cites Kemori 1980 doi	Table 2, p. 6, row 19 report
1495	monotectic: L2 -> L1 + Cu2O (monotectic)	L2: O 0.097; L1: O 0.308	model	[1] Hallstedt 1994 cites Schmid 1983 doi	Table 2, p. 6, row 22 report
1493	monotectic: L2 -> L1 + Cu2O (monotectic)	L2: O 0.094; L1: O 0.311	experimental	[1] Hallstedt 1994 cites Kuxmann 1968	Table 2, p. 6, row 16 report
1490	monotectic: L2 -> L1 + Cu2O (monotectic)	L2: O 0.095; L1: O 0.316	experimental	[1] Hallstedt 1994 cites S 1977	Table 2, p. 6, row 17 report
1489	monotectic: L2 -> L1 + Cu2O (monotectic)	L2: O 0.087; L1: O 0.313	experimental	[1] Hallstedt 1994 cites Osterwald 1968	Table 2, p. 6, row 14 report
1489	monotectic: L2 -> L1 + Cu2O (monotectic)		experimental	[1] Hallstedt 1994 cites Osterwald 1966 doi	Table 2, p. 6, row 13 report
1489	monotectic: L2 -> L1 + Cu2O (monotectic)	L2: O 0.089; L1: O 0.305	experimental	[1] Hallstedt 1994 cites Gerlach 1968 doi	Table 2, p. 6, row 15 report
1473	monotectic: L2 -> L1 + Cu2O (monotectic)		experimental	[1] Hallstedt 1994 cites Vogel 1929	Table 2, p. 6, row 12 report
1468	monotectic: L2 -> L1 + Cu2O (monotectic)	L2: O 0.084; L1: O 0.319	experimental	[1] Hallstedt 1994 cites Slade 1912 doi	Table 2, p. 6, row 11 report
1428	L2 + O2 -> Cu2O (in air)		experimental	[1] Hallstedt 1994 cites Eric 1979 doi	Table 2, p. 6, row 47 report
1413	L2 + O2 -> Cu2O (in air)	L2: O 0.369	experimental	[1] Hallstedt 1994 cites S 1977	Table 2, p. 6, row 46 report
1403	L2 + O2 -> CuO (in oxygen)	L2: O 0.39	model	[1] Hallstedt 1994 cites Schmid 1983 doi	Table 2, p. 6, row 57 report
1398	L2 + O2 -> Cu2O (in air)	L2: O 0.378	experimental	[1] Hallstedt 1994 cites Osterwald 1968	Table 2, p. 6, row 45 report
1397	L2 + O2 -> Cu2O (in air)	L2: O 0.377	model	[1] Hallstedt 1994	Table 2, p. 6, row 50 report
1396	L2 + O2 -> CuO (in oxygen)	L2: O 0.393	experimental	[1] Hallstedt 1994 cites S 1977	Table 2, p. 6, row 55 report
1395	L2 + O2 -> CuO (in oxygen)	L2: O 0.397	experimental	[1] Hallstedt 1994 cites Osterwald 1968	Table 2, p. 6, row 54 report
1393	L2 + O2 -> Cu2O (in air)	L2: O 0.377	model	[1] Hallstedt 1994 cites Boudbne 1992	Table 2, p. 6, row 49 report
1387	L2 + O2 -> Cu2O (in air)		experimental	[1] Hallstedt 1994 cites Boud 1991	Table 2, p. 6, row 48 report
1383	L2 + O2 -> CuO (in oxygen)		experimental	[1] Hallstedt 1994 cites Vogel 1929	Table 2, p. 6, row 52 report
1375	L2 + O2 -> CuO (in oxygen)	L2: O 0.392	model	[1] Hallstedt 1994 cites Boudbne 1992	Table 2, p. 6, row 58 report
1375	L2 + O2 -> CuO (in oxygen)	L2: O 0.392	model	[1] Hallstedt 1994	Table 2, p. 6, row 59 report
1374	L2 + O2 -> CuO (in oxygen)	L2: O 0.399	experimental	[1] Hallstedt 1994 cites EH 1920	Table 2, p. 6, row 51 report
1371	L2 + O2 -> CuO (in oxygen)		experimental	[1] Hallstedt 1994 cites Boud 1991	Table 2, p. 6, row 56 report
1369	L2 + O2 -> CuO (in oxygen)	L2: O 0.398	experimental	[1] Hallstedt 1994 cites Gadalla 1963	Table 2, p. 6, row 53 report
1363	eutectic: L2 -> Cu2O + CuO (eutectic)	L2: O 0.382	model	[1] Hallstedt 1994 cites Schmid 1983 doi	Table 2, p. 6, row 42 report
1363	eutectic: L2 -> Cu2O + CuO (eutectic)	L2: O 0.387	experimental	[1] Hallstedt 1994 cites Osterwald 1968	Table 2, p. 6, row 39 report
1363	eutectic: L2 -> Cu2O + CuO (eutectic)	L2: O 0.383	experimental	[1] Hallstedt 1994 cites S 1977	Table 2, p. 6, row 40 report
1354	eutectic: L2 -> Cu2O + CuO (eutectic)	L2: O 0.388	model	[1] Hallstedt 1994	Table 2, p. 6, row 44 report
1353	eutectic: L2 -> Cu2O + CuO (eutectic)	L2: O 0.389	experimental	[1] Hallstedt 1994 cites Roberts 1921 doi	Table 2, p. 6, row 37 report
1353	eutectic: L2 -> Cu2O + CuO (eutectic)		experimental	[1] Hallstedt 1994 cites EH 1920	Table 2, p. 6, row 36 report
1353	eutectic: L2 -> Cu2O + CuO (eutectic)	L2: O 0.387	model	[1] Hallstedt 1994 cites Boudbne 1992	Table 2, p. 6, row 43 report
1353	eutectic: L2 -> Cu2O + CuO (eutectic)	L2: O 0.388	experimental	[1] Hallstedt 1994 cites Boud 1991	Table 2, p. 6, row 41 report
1348	eutectic: L2 -> Cu2O + CuO (eutectic)	L2: O 0.39	experimental	[1] Hallstedt 1994 cites Vogel 1929	Table 2, p. 6, row 38 report
1339.6	eutectic: L1 -> Cu (fcc) + Cu2O (eutectic)	L1: O 0.01746	model	[1] Hallstedt 1994	Table 2, p. 6, row 10 report
1339.6	eutectic: L1 -> Cu (fcc) + Cu2O (eutectic)	L1: O 0.0174	model	[1] Hallstedt 1994 cites Boudbne 1992	Table 2, p. 6, row 9 report
1339.6	eutectic: L1 -> Cu (fcc) + Cu2O (eutectic)	L1: O 0.0174	experimental	[1] Hallstedt 1994 cites ref. 81Tas1	Table 2, p. 6, row 7 report
1338	eutectic: L1 -> Cu (fcc) + Cu2O (eutectic)	L1: O 0.02	experimental	[1] Hallstedt 1994 cites Dejean 1906 doi	Table 2, p. 6, row 2 report
1338	eutectic: L1 -> Cu (fcc) + Cu2O (eutectic)	L1: O 0.0185	experimental	[1] Hallstedt 1994 cites S 1977	Table 2, p. 6, row 5 report
1338	eutectic: L1 -> Cu (fcc) + Cu2O (eutectic)	L1: O 0.0173	experimental	[1] Hallstedt 1994 cites Gerlach 1968 doi	Table 2, p. 6, row 4 report
1338	eutectic: L1 -> Cu (fcc) + Cu2O (eutectic)	L1: O 0.017	model	[1] Hallstedt 1994 cites Schmid 1983 doi	Table 2, p. 6, row 8 report
1338	eutectic: L1 -> Cu (fcc) + Cu2O (eutectic)	L1: O 0.0154	experimental	[1] Hallstedt 1994 cites Heyn 1904 doi	Table 2, p. 6, row 1 report
1338	eutectic: L1 -> Cu (fcc) + Cu2O (eutectic)	L1: O 0.015	experimental	[1] Hallstedt 1994 cites Vogel 1929	Table 2, p. 6, row 3 report
1333	eutectic: L1 -> Cu (fcc) + Cu2O (eutectic)		experimental	[1] Hallstedt 1994 cites Kemori 1979 doi	Table 2, p. 6, row 6 report
1300	Cu2O + 0.5 O2 -> 2 CuO (in air)		model	[1] Hallstedt 1994	Table 2, p. 6, row 65 report
1299	Cu2O + 0.5 O2 -> 2 CuO (in air)		experimental	[1] Hallstedt 1994 cites Boud 1991	Table 2, p. 6, row 63 report
1299	Cu2O + 0.5 O2 -> 2 CuO (in air)		experimental	[1] Hallstedt 1994 cites Gadalla 1963	Table 2, p. 6, row 61 report
1299	Cu2O + 0.5 O2 -> 2 CuO (in air)		experimental	[1] Hallstedt 1994 cites Roberts 1921 doi	Table 2, p. 6, row 60 report
1299	Cu2O + 0.5 O2 -> 2 CuO (in air)		model	[1] Hallstedt 1994 cites Boudbne 1992	Table 2, p. 6, row 64 report
1299	Cu2O + 0.5 O2 -> 2 CuO (in air)		experimental	[1] Hallstedt 1994 cites Eric 1979 doi	Table 2, p. 6, row 62 report

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.

Enthalpies of formation, Cu–O system (27)
Phase	Compound	Value	T (K)	Class	MP DFT (kJ/mol-atom)	OQMD DFT (kJ/mol-atom)	Source	Location
Cu2O	Cu2O	-59.97 kJ/mol-atom	298.15	experimental	-62.185 (mp-aaaaaanx)	-66.037 (oqmd-643065)	[1] Hallstedt 1994 cites Wrhler 1934	Table 8, p. 13, row 4 report
Cu2O	Cu2O	-57.7267 kJ/mol-atom	298.15	experimental	-62.185 (mp-aaaaaanx)	-66.037 (oqmd-643065)	[1] Hallstedt 1994 cites Nufiez 1969	Table 8, p. 13, row 10 report
Cu2O	Cu2O	-57.4933 kJ/mol-atom	298.15	model	-62.185 (mp-aaaaaanx)	-66.037 (oqmd-643065)	[1] Hallstedt 1994 cites Boud 1991	Table 8, p. 13, row 15 report
Cu2O	Cu2O	-56.9433 kJ/mol-atom	298.15	experimental	-62.185 (mp-aaaaaanx)	-66.037 (oqmd-643065)	[1] Hallstedt 1994 cites Mah 1967	Table 8, p. 13, row 8 report
Cu2O	Cu2O	-56.9033 kJ/mol-atom	298.15	model	-62.185 (mp-aaaaaanx)	-66.037 (oqmd-643065)	[1] Hallstedt 1994 cites Chase 1985	Table 8, p. 13, row 13 report
Cu2O	Cu2O	-56.7633 kJ/mol-atom	298.15	experimental	-62.185 (mp-aaaaaanx)	-66.037 (oqmd-643065)	[1] Hallstedt 1994 cites Thomsen 1883	Table 8, p. 13, row 1 report
Cu2O	Cu2O	-56.7533 kJ/mol-atom	298.15	model	-62.185 (mp-aaaaaanx)	-66.037 (oqmd-643065)	[1] Hallstedt 1994	Table 8, p. 13, row 17 report
Cu2O	Cu2O	-54.95 kJ/mol-atom	293	experimental	-62.185 (mp-aaaaaanx)	-66.037 (oqmd-643065)	[1] Hallstedt 1994 cites ref. 34Bil	Table 8, p. 13, row 6 report
CuO	CuO	-80.855 kJ/mol-atom	298.15	experimental	-90.966 (mp-aaaaacnc)	-80.231 (oqmd-1343583)	[1] Hallstedt 1994 cites Nufiez 1969	Table 8, p. 13, row 10 report
CuO	CuO	-80.855 kJ/mol-atom	298.15	experimental	-90.966 (mp-aaaaacnc)	-80.231 (oqmd-1343583)	[1] Hallstedt 1994 cites Nufiez 1969	Table 8, p. 13, row 12 report
CuO	CuO	-80.54 kJ/mol-atom	295	experimental	-90.966 (mp-aaaaacnc)	-80.231 (oqmd-1343583)	[1] Hallstedt 1994 cites H 1932	Table 8, p. 13, row 3 report
CuO	CuO	-78.535 kJ/mol-atom	298.15	experimental	-90.966 (mp-aaaaacnc)	-80.231 (oqmd-1343583)	[1] Hallstedt 1994 cites Nufiez 1969	Table 8, p. 13, row 10 report
CuO	CuO	-78.535 kJ/mol-atom	298.15	experimental	-90.966 (mp-aaaaacnc)	-80.231 (oqmd-1343583)	[1] Hallstedt 1994 cites Nufiez 1969	Table 8, p. 13, row 11 report
CuO	CuO	-78.03 kJ/mol-atom	298.15	model	-90.966 (mp-aaaaacnc)	-80.231 (oqmd-1343583)	[1] Hallstedt 1994 cites Chase 1985	Table 8, p. 13, row 14 report
CuO	CuO	-78.03 kJ/mol-atom	298.15	model	-90.966 (mp-aaaaacnc)	-80.231 (oqmd-1343583)	[1] Hallstedt 1994 cites Chase 1985	Table 8, p. 13, row 13 report
CuO	CuO	-77.885 kJ/mol-atom	298.15	experimental	-90.966 (mp-aaaaacnc)	-80.231 (oqmd-1343583)	[1] Hallstedt 1994 cites Mah 1967	Table 8, p. 13, row 8 report
CuO	CuO	-77.885 kJ/mol-atom	298.15	experimental	-90.966 (mp-aaaaacnc)	-80.231 (oqmd-1343583)	[1] Hallstedt 1994 cites Mah 1967	Table 8, p. 13, row 9 report
CuO	CuO	-77.74 kJ/mol-atom	298.15	experimental	-90.966 (mp-aaaaacnc)	-80.231 (oqmd-1343583)	[1] Hallstedt 1994 cites Thomsen 1883	Table 8, p. 13, row 2 report
CuO	CuO	-77.74 kJ/mol-atom	298.15	experimental	-90.966 (mp-aaaaacnc)	-80.231 (oqmd-1343583)	[1] Hallstedt 1994 cites Thomsen 1883	Table 8, p. 13, row 1 report
CuO	CuO	-77.595 kJ/mol-atom	298.15	model	-90.966 (mp-aaaaacnc)	-80.231 (oqmd-1343583)	[1] Hallstedt 1994	Table 8, p. 13, row 18 report
CuO	CuO	-77.595 kJ/mol-atom	298.15	model	-90.966 (mp-aaaaacnc)	-80.231 (oqmd-1343583)	[1] Hallstedt 1994	Table 8, p. 13, row 17 report
CuO	CuO	-77.015 kJ/mol-atom	298.15	model	-90.966 (mp-aaaaacnc)	-80.231 (oqmd-1343583)	[1] Hallstedt 1994 cites Boud 1991	Table 8, p. 13, row 16 report
CuO	CuO	-77.015 kJ/mol-atom	298.15	model	-90.966 (mp-aaaaacnc)	-80.231 (oqmd-1343583)	[1] Hallstedt 1994 cites Boud 1991	Table 8, p. 13, row 15 report
CuO	CuO	-76.15 kJ/mol-atom	293	experimental	-90.966 (mp-aaaaacnc)	-80.231 (oqmd-1343583)	[1] Hallstedt 1994 cites ref. 34Bil	Table 8, p. 13, row 7 report
CuO	CuO	-76.15 kJ/mol-atom	293	experimental	-90.966 (mp-aaaaacnc)	-80.231 (oqmd-1343583)	[1] Hallstedt 1994 cites ref. 34Bil	Table 8, p. 13, row 6 report
CuO	CuO	-69.08 kJ/mol-atom	298.15	experimental	-90.966 (mp-aaaaacnc)	-80.231 (oqmd-1343583)	[1] Hallstedt 1994 cites Wrhler 1934	Table 8, p. 13, row 5 report
CuO	CuO	-69.08 kJ/mol-atom	298.15	experimental	-90.966 (mp-aaaaacnc)	-80.231 (oqmd-1343583)	[1] Hallstedt 1994 cites Wrhler 1934	Table 8, p. 13, row 4 report

Other properties

Phase transition (13)

Phase transition, Cu–O system
Property	Value	T (K)	Phases / composition	Class	Source	Location	Quote
Phase transition	230 K	230	magnetic	experimental	[1] Hallstedt 1994 cites O'Keeffe 1962	p. 4 report	There is a paramagnetic-antiferromagnetic transition in CuO with a N4el temperature at 230 K [62Oke, 88See].
Phase transition	230 K	230	magnetic	experimental	[2] Schramm 2005 cites OKeeffe 1962	p. 4 report	The paramagnetic-antiferromagnetic transition[30,31] in CuO with a Néel temperature at 230 K is far below the modeled temperature range, and was not considered in this work.
Phase transition	1483 K	1483	congruent melting: L2 -> Cu2O (congruent melting point)	experimental	[1] Hallstedt 1994 cites Slade 1912 doi	Table 2, p. 6, row 25 report
Phase transition	1498 K	1498	congruent melting: L2 -> Cu2O (congruent melting point)	experimental	[1] Hallstedt 1994 cites Gerlach 1968 doi	Table 2, p. 6, row 29 report
Phase transition	1499 K	1499	congruent melting: L2 -> Cu2O (congruent melting point)	experimental	[1] Hallstedt 1994 cites Kayahara 1981 doi	Table 2, p. 6, row 31 report
Phase transition	1500 K	1500	congruent melting: L2 -> Cu2O (congruent melting point)	experimental	[1] Hallstedt 1994 cites Taskinen 1984	Table 2, p. 6, row 32 report
Phase transition	1500 K	1500	congruent melting: L2 -> Cu2O (congruent melting point)	experimental	[1] Hallstedt 1994 cites S 1977	Table 2, p. 6, row 30 report
Phase transition	1500 K	1500	congruent melting: L2 -> Cu2O (congruent melting point)	model	[1] Hallstedt 1994 cites Schmid 1983 doi	Table 2, p. 6, row 33 report
Phase transition	1501 K	1501	congruent melting: L2 -> Cu2O (congruent melting point)	model	[1] Hallstedt 1994	Table 2, p. 6, row 35 report
Phase transition	1502 K	1502	congruent melting: L2 -> Cu2O (congruent melting point)	model	[1] Hallstedt 1994 cites Boudbne 1992	Table 2, p. 6, row 34 report
Phase transition	1502 K	1502	congruent melting: L2 -> Cu2O (congruent melting point)	experimental	[1] Hallstedt 1994 cites Osterwald 1968	Table 2, p. 6, row 28 report
Phase transition	1508 K	1508	congruent melting: L2 -> Cu2O (congruent melting point)	experimental	[1] Hallstedt 1994 cites Roberts 1921 doi	Table 2, p. 6, row 26 report
Phase transition	1515 K	1515	congruent melting: L2 -> Cu2O (congruent melting point)	experimental	[1] Hallstedt 1994 cites Mah 1967	Table 2, p. 6, row 27 report

Formation (12)

Formation, Cu–O system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Gibbs energy of formation printed: ΔfG(Cu2O)	-145.8 kJ/mol (basis unstated)	290	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Allmand 1910 doi	Table 11, p. 13, row 11 report
Gibbs energy of formation printed: ΔfG(Cu2O)	-148.19 kJ/mol (basis unstated)	291	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites ref. 11All	Table 11, p. 13, row 12 report
Gibbs energy of formation printed: ΔfG(Cu2O)	-145.07 kJ/mol (basis unstated)	298.15	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Maier 1929 doi	Table 11, p. 13, row 4 report
Gibbs energy of formation printed: ΔfG(Cu2O)	-147.56 kJ/mol (basis unstated)	298.15	Cu2O alloy: O 0.333333	model	[1] Hallstedt 1994	Table 11, p. 13, row 10 report
Gibbs energy of formation printed: ΔfG(Cu2O)	-147.89 kJ/mol (basis unstated)	298.15	Cu2O alloy: O 0.333333	model	[1] Hallstedt 1994 cites Chase 1985	Table 11, p. 13, row 9 report
Gibbs energy of formation printed: ΔfG(CuO)	-126.51 kJ/mol (basis unstated)	298.15	CuO alloy: O 0.5	experimental	[1] Hallstedt 1994 cites Feitknecht 1944 doi	Table 11, p. 13, row 5 report
Gibbs energy of formation printed: ΔfG(CuO)	-128.87 kJ/mol (basis unstated)	298.15	CuO alloy: O 0.5	experimental	[1] Hallstedt 1994 cites Maier 1929 doi	Table 11, p. 13, row 4 report
Gibbs energy of formation printed: ΔfG(CuO)	-126.51 kJ/mol (basis unstated)	298.15	CuO alloy: O 0.5	experimental	[1] Hallstedt 1994 cites Barton 1960	Table 11, p. 13, row 7 report
Gibbs energy of formation printed: ΔfG(CuO)	-127.58 kJ/mol (basis unstated)	298.15	CuO alloy: O 0.5	model	[1] Hallstedt 1994	Table 11, p. 13, row 10 report
Gibbs energy of formation printed: ΔfG(CuO)	-124.56 kJ/mol (basis unstated)	298.15	CuO alloy: O 0.5	experimental	[1] Hallstedt 1994 cites Nasanen 1949 doi	Table 11, p. 13, row 6 report
Gibbs energy of formation printed: ΔfG(CuO)	-128.24 kJ/mol (basis unstated)	298.15	CuO alloy: O 0.5	experimental	[1] Hallstedt 1994 cites Schindler 1965 doi	Table 11, p. 13, row 8 report
Gibbs energy of formation printed: ΔfG(CuO)	-128.29 kJ/mol (basis unstated)	298.15	CuO alloy: O 0.5	model	[1] Hallstedt 1994 cites Chase 1985	Table 11, p. 13, row 9 report

Heat capacity / entropy / enthalpy (37)

Heat capacity / entropy / enthalpy, Cu–O system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Entropy printed: S(Cu2O)	93.87 J/mol (basis unstated)/K	298.15	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Hu 1951 doi	Table 9, p. 13, row 3 report
Entropy printed: S(Cu2O)	90.68 J/mol (basis unstated)/K	298.15	Cu2O alloy: O 0.333333	model	[1] Hallstedt 1994 cites Boud 1991	Table 9, p. 13, row 9 report
Entropy printed: S(Cu2O)	92.36 J/mol (basis unstated)/K	298.15	Cu2O alloy: O 0.333333	model	[1] Hallstedt 1994 cites Chase 1985	Table 9, p. 13, row 7 report
Entropy printed: S(Cu2O)	92.68 J/mol (basis unstated)/K	298.15	Cu2O alloy: O 0.333333	model	[1] Hallstedt 1994	Table 9, p. 13, row 11 report
Entropy printed: S(Cu2O)	90.79 J/mol (basis unstated)/K	298.15	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites ref. 29Mil	Table 9, p. 13, row 1 report
Entropy printed: S(Cu2O)	92.38 J/mol (basis unstated)/K	298.15	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Mah 1967	Table 9, p. 13, row 6 report
Entropy printed: S(Cu2O)	93.14 J/mol (basis unstated)/K	298.15	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Gregor 1962 doi	Table 9, p. 13, row 5 report
Entropy printed: S(CuO)	40.79 J/mol (basis unstated)/K	298.15	CuO alloy: O 0.5	experimental	[1] Hallstedt 1994 cites ref. 29Mil	Table 9, p. 13, row 2 report
Entropy printed: S(CuO)	43.06 J/mol (basis unstated)/K	298.15	CuO alloy: O 0.5	model	[1] Hallstedt 1994	Table 9, p. 13, row 12 report
Entropy printed: S	43.69 J/mol (basis unstated)/K	298.15	CuO alloy: Cu 0.5, O 0.5	model	[1] Hallstedt 1994 cites Boud 1991	Table 9, p. 13, row 9 report
Entropy printed: S(CuO)	42.59 J/mol (basis unstated)/K	298.15	CuO alloy: O 0.5	model	[1] Hallstedt 1994 cites Chase 1985	Table 9, p. 13, row 8 report
Entropy printed: S(CuO)	43.69 J/mol (basis unstated)/K	298.15	CuO alloy: O 0.5	model	[1] Hallstedt 1994 cites Boud 1991	Table 9, p. 13, row 10 report
Entropy printed: S(CuO)	42.63 J/mol (basis unstated)/K	298.15	CuO alloy: O 0.5	experimental	[1] Hallstedt 1994 cites Hu 1953 doi	Table 9, p. 13, row 4 report
Entropy printed: S	42.59 J/mol (basis unstated)/K	298.15	CuO alloy: Cu 0.5, O 0.5	model	[1] Hallstedt 1994 cites Chase 1985	Table 9, p. 13, row 7 report
Entropy printed: S	43.06 J/mol (basis unstated)/K	298.15	CuO alloy: Cu 0.5, O 0.5	model	[1] Hallstedt 1994	Table 9, p. 13, row 11 report
Entropy printed: S	40.79 J/mol (basis unstated)/K	298.15	CuO alloy: Cu 0.5, O 0.5	experimental	[1] Hallstedt 1994 cites ref. 29Mil	Table 9, p. 13, row 1 report
Heat capacity printed: Cp (liquid)	87.8 J/mol (basis unstated)/K		liquid Cu2O alloy: O 0.333333	model	[1] Hallstedt 1994	Table 5, p. 10, row 4 report
Heat capacity printed: Cp (liquid)	99.9 J/mol (basis unstated)/K		liquid Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Mah 1967	Table 5, p. 10, row 1 report
Heat capacity printed: Cp (liquid)	81.4 J/mol (basis unstated)/K		liquid Cu2O alloy: O 0.333333	model	[1] Hallstedt 1994 cites Boudbne 1992	Table 5, p. 10, row 3 report
Heat capacity printed: Cp(Cu2O)	64 J/mol (basis unstated)/K	298.15	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Neumann 1831	Table 10, p. 13, row 1 report
Heat capacity printed: Cp(Cu2O)	63.64 J/mol (basis unstated)/K	298.15	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Hu 1951 doi	Table 10, p. 13, row 7 report
Heat capacity printed: Cp(Cu2O)	66.5 J/mol (basis unstated)/K	298.15	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Kopp 1865 doi	Table 10, p. 13, row 3 report
Heat capacity printed: Cp(Cu2O)	61.84 J/mol (basis unstated)/K	298.15	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites ref. 29Mil	Table 10, p. 13, row 6 report
Heat capacity printed: Cp(Cu2O)	62.59 J/mol (basis unstated)/K	298.15	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Mah 1967	Table 10, p. 13, row 9 report
Heat capacity printed: Cp(Cu2O)	62.47 J/mol (basis unstated)/K	298.15	Cu2O alloy: O 0.333333	model	[1] Hallstedt 1994	Table 10, p. 13, row 12 report
Heat capacity printed: Cp(Cu2O)	68.66 J/mol (basis unstated)/K	298.15	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Magnus 1911	Table 10, p. 13, row 4 report
Heat capacity printed: Cp(Cu2O)	62.54 J/mol (basis unstated)/K	298.15	Cu2O alloy: O 0.333333	model	[1] Hallstedt 1994 cites Chase 1985	Table 10, p. 13, row 10 report
Heat capacity printed: Cp(Cu2O)	62.7 J/mol (basis unstated)/K	298.15	Cu2O alloy: O 0.333333	model	[1] Hallstedt 1994 cites Boud 1991	Table 10, p. 13, row 11 report
Heat capacity printed: Cp(CuO)	45.6 J/mol (basis unstated)/K	298.15	CuO alloy: O 0.5	experimental	[1] Hallstedt 1994 cites Neumann 1831	Table 10, p. 13, row 1 report
Heat capacity printed: Cp(CuO)	42.7 J/mol (basis unstated)/K	298.15	CuO alloy: O 0.5	experimental	[1] Hallstedt 1994 cites Kopp 1865 doi	Table 10, p. 13, row 3 report
Heat capacity printed: Cp(CuO)	47.3 J/mol (basis unstated)/K	298.15	CuO alloy: O 0.5	experimental	[1] Hallstedt 1994 cites Regnault 1841	Table 10, p. 13, row 2 report
Heat capacity printed: Cp(CuO)	42.59 J/mol (basis unstated)/K	298.15	CuO alloy: O 0.5	experimental	[1] Hallstedt 1994 cites ref. 29Mil	Table 10, p. 13, row 6 report
Heat capacity printed: Cp(CuO)	42.3 J/mol (basis unstated)/K	298.15	CuO alloy: O 0.5	experimental	[1] Hallstedt 1994 cites Hu 1953 doi	Table 10, p. 13, row 8 report
Heat capacity printed: Cp(CuO)	42.26 J/mol (basis unstated)/K	298.15	CuO alloy: O 0.5	model	[1] Hallstedt 1994	Table 10, p. 13, row 12 report
Heat capacity printed: Cp(CuO)	43.5 J/mol (basis unstated)/K	298.15	CuO alloy: O 0.5	experimental	[1] Hallstedt 1994 cites Russell 1912	Table 10, p. 13, row 5 report
Heat capacity printed: Cp(CuO)	42.25 J/mol (basis unstated)/K	298.15	CuO alloy: O 0.5	model	[1] Hallstedt 1994 cites Chase 1985	Table 10, p. 13, row 10 report
Heat capacity printed: Cp(CuO)	42.29 J/mol (basis unstated)/K	298.15	CuO alloy: O 0.5	model	[1] Hallstedt 1994 cites Boud 1991	Table 10, p. 13, row 11 report

Activity / EMF / Gibbs energy (38)

Activity / EMF / Gibbs energy, Cu–O system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Gibbs energy printed: ΔG0	-78380 J/mol		liquid	experimental	[1] Hallstedt 1994 cites E Puchi 1979	Table 3, p. 10, row 1 report
Gibbs energy printed: ΔG0	-77920 J/mol		liquid	experimental	[1] Hallstedt 1994 cites E Puchi 1979	Table 3, p. 10, row 1 report
Gibbs energy printed: ΔG0	-76200 J/mol		liquid Cu	experimental	[1] Hallstedt 1994 cites Diaz 1967	Table 3, p. 9, row 10 report
Gibbs energy printed: ΔG0	-75820 J/mol		liquid Cu	experimental	[1] Hallstedt 1994 cites Diaz 1967	Table 3, p. 9, row 10 report
Gibbs energy printed: ΔG0	-79080 J/mol		liquid Cu	experimental	[1] Hallstedt 1994 cites Tankins 1965	Table 3, p. 9, row 6 report
Gibbs energy printed: ΔG0	-78150 J/mol		liquid Cu	experimental	[1] Hallstedt 1994 cites Tankins 1965	Table 3, p. 9, row 6 report
Gibbs energy printed: ΔG0	-75400 J/mol		liquid Cu	experimental	[1] Hallstedt 1994 cites Fitzner 1979 doi	Table 3, p. 9, row 37 report
Gibbs energy printed: ΔG0	-73550 J/mol		liquid Cu	experimental	[1] Hallstedt 1994 cites Fitzner 1979 doi	Table 3, p. 9, row 37 report
Gibbs energy printed: ΔG0	-76620 J/mol		liquid Cu	experimental	[1] Hallstedt 1994 cites Hendry 1974	Table 3, p. 9, row 30 report
Gibbs energy printed: ΔG0	-80940 J/mol		liquid Cu	experimental	[1] Hallstedt 1994 cites Hendry 1974	Table 3, p. 9, row 30 report
Gibbs energy printed: ΔG0	-77920 J/mol		liquid Cu	experimental	[1] Hallstedt 1994 cites E Puchi 1979	Table 3, p. 9, row 39 report
Gibbs energy printed: ΔG0	-78380 J/mol		liquid Cu	experimental	[1] Hallstedt 1994 cites E Puchi 1979	Table 3, p. 9, row 39 report
Gibbs energy printed: ΔG0	-85530 J/mol		liquid Cu	experimental	[1] Hallstedt 1994 cites M 1967	Table 3, p. 9, row 11 report
Gibbs energy printed: ΔG0	-85690 J/mol		liquid Cu	experimental	[1] Hallstedt 1994 cites M 1967	Table 3, p. 9, row 11 report
Gibbs energy printed: ΔG0	-76130 J/mol		liquid Cu	experimental	[1] Hallstedt 1994 cites ref. 71Jac	Table 3, p. 9, row 23 report
Gibbs energy printed: ΔG0	-75000 J/mol		liquid Cu	experimental	[1] Hallstedt 1994 cites ref. 71Jac	Table 3, p. 9, row 23 report
Gibbs energy printed: ΔG0	-75960 J/mol		liquid Cu	experimental	[1] Hallstedt 1994 cites Wilder 1966	Table 3, p. 9, row 9 report
Gibbs energy printed: ΔG0	-76900 J/mol		liquid Cu	experimental	[1] Hallstedt 1994 cites Wilder 1966	Table 3, p. 9, row 9 report
Gibbs energy printed: ΔG(Cu2O/CuO)	-110.21 kJ/mol	290	UNKNOWN	experimental	[1] Hallstedt 1994 cites ref. 10All	Table 11, p. 13, row 2 report
Gibbs energy printed: ΔG(Cu2O/CuO)	-112.67 kJ/mol	298.15	UNKNOWN	experimental	[1] Hallstedt 1994 cites Maier 1929 doi	Table 11, p. 13, row 4 report
Gibbs energy printed: ΔG(Cu2O/CuO)	-107.6 kJ/mol	298.15	UNKNOWN	model	[1] Hallstedt 1994	Table 11, p. 13, row 10 report
Gibbs energy printed: ΔG(Cu2O/CuO)	-108.7 kJ/mol	298.15	UNKNOWN	model	[1] Hallstedt 1994 cites Chase 1985	Table 11, p. 13, row 9 report
Gibbs energy printed: ΔG0	-76590 J/mol	1373	liquid Cu	experimental	[1] Hallstedt 1994 cites Fitzner 1978	Table 3, p. 9, row 35 report
Gibbs energy printed: ΔG0	-76650 J/mol	1408	liquid Cu	experimental	[1] Hallstedt 1994 cites Nanda 1970 doi	Table 3, p. 9, row 20 report
Gibbs energy printed: ΔG0	-76660 J/mol	1418	liquid Cu	experimental	[1] Hallstedt 1994 cites Rickert 1966 doi	Table 3, p. 9, row 8 report
Gibbs energy printed: ΔG0	-79570 J/mol	1423	liquid Cu	experimental	[1] Hallstedt 1994 cites Moser 1975	Table 3, p. 9, row 33 report
Gibbs energy printed: ΔG0	-75460 J/mol	1423	liquid Cu	experimental	[1] Hallstedt 1994 cites Fischer 1970 doi	Table 3, p. 9, row 19 report
Gibbs energy printed: ΔG0	-73640 J/mol	1423	liquid Cu	experimental	[1] Hallstedt 1994 cites Janke 1975	Table 3, p. 9, row 32 report
Gibbs energy printed: ΔG0	-77920 J/mol	1423	liquid Cu	experimental	[1] Hallstedt 1994 cites Pluschkell 1965	Table 3, p. 9, row 5 report
Gibbs energy printed: ΔG0	-74600 J/mol	1473	liquid	experimental	[1] Hallstedt 1994 cites Sudavtsova 1979	Table 3, p. 10, row 2 report
Gibbs energy printed: ΔG0	-75400 J/mol	1473	liquid	experimental	[1] Hallstedt 1994 cites ref. 83Aru	Table 3, p. 10, row 8 report
Gibbs energy printed: ΔG0	-75940 J/mol	1473	liquid Cu	experimental	[1] Hallstedt 1994 cites ref. 69Blo	Table 3, p. 9, row 16 report
Gibbs energy printed: ΔG0	-76360 J/mol	1473	liquid Cu	experimental	[1] Hallstedt 1994 cites Staffansson 1974	Table 3, p. 9, row 31 report
Gibbs energy printed: ΔG0	-75400 J/mol	1473	liquid Cu	experimental	[1] Hallstedt 1994 cites ref. 83Aru	Table 3, p. 9, row 46 report
Gibbs energy printed: ΔG0	-74600 J/mol	1473	liquid Cu	experimental	[1] Hallstedt 1994 cites Sudavtsova 1979	Table 3, p. 9, row 40 report
Gibbs energy printed: ΔG0	-75240 J/mol	1573	liquid	experimental	[1] Hallstedt 1994 cites Kemori 1980 doi	Table 3, p. 10, row 4 report
Gibbs energy printed: ΔG0	-75240 J/mol	1573	liquid Cu	experimental	[1] Hallstedt 1994 cites Kemori 1980 doi	Table 3, p. 9, row 42 report
Gibbs energy printed: ΔG0	-75160 J/mol	1873	liquid Cu	experimental	[1] Hallstedt 1994 cites Fischer 1971	Table 3, p. 9, row 22 report

Model expression (174)

Model expression, Cu–O system
Property	Value	Phases / composition	Class	Source	Location
gibbs energy expression term printed: ΔG0 (coefficient of T)	69.29 J/mol/K	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Matsushita 1964	Table 6, p. 11, row 6 report
gibbs energy expression term printed: ΔG0 (constant term A)	-166400 J/mol	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Matsushita 1964	Table 6, p. 11, row 6 report
gibbs energy expression term printed: ΔG0 (coefficient of T)	72.66 J/mol/K	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Sellars 1966	Table 6, p. 11, row 9 report
gibbs energy expression term printed: ΔG0 (constant term A)	-168620 J/mol	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Sellars 1966	Table 6, p. 11, row 9 report
gibbs energy expression term printed: ΔG0 (constant term A)	-161830 J/mol	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Hammer 1984	Table 6, p. 11, row 24 report
gibbs energy expression term printed: ΔG0 (coefficient of T)	64.82 J/mol/K	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Hammer 1984	Table 6, p. 11, row 24 report
gibbs energy expression term printed: ΔG0 (coefficient of T)	72.2 J/mol/K	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites EE 1967	Table 6, p. 11, row 11 report
gibbs energy expression term printed: ΔG0 (constant term A)	-167610 J/mol	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites EE 1967	Table 6, p. 11, row 11 report
gibbs energy expression term printed: ΔG0 (constant term A)	-174140 J/mol	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites ref. 86Hol	Table 6, p. 11, row 27 report
gibbs energy expression term printed: ΔG0 (coefficient of T)	124.91 J/mol/K	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites ref. 86Hol	Table 6, p. 11, row 27 report
gibbs energy expression term printed: ΔG0 (coefficient of T lnT)	-6.67 J/mol/K	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites ref. 86Hol	Table 6, p. 11, row 27 report
gibbs energy expression term printed: ΔG0 (coefficient of T)	74 J/mol/K	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Peters 1958 doi	Table 6, p. 11, row 5 report
gibbs energy expression term printed: ΔG0 (constant term A)	-167330 J/mol	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Peters 1958 doi	Table 6, p. 11, row 5 report
gibbs energy expression term printed: ΔG0 (coefficient of T)	119.88 J/mol/K	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites ref. 89Hol	Table 6, p. 11, row 29 report
gibbs energy expression term printed: ΔG0 (constant term A)	-173240 J/mol	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites ref. 89Hol	Table 6, p. 11, row 29 report
gibbs energy expression term printed: ΔG0 (coefficient of T lnT)	-6.09 J/mol/K	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites ref. 89Hol	Table 6, p. 11, row 29 report
gibbs energy expression term printed: ΔG0 (constant term A)	-177280 J/mol	Cu2O alloy: O 0.333333	model	[1] Hallstedt 1994 cites Boud 1991	Table 6, p. 11, row 33 report
gibbs energy expression term printed: ΔG0 (coefficient of T)	134.92 J/mol/K	Cu2O alloy: O 0.333333	model	[1] Hallstedt 1994 cites Boud 1991	Table 6, p. 11, row 33 report
gibbs energy expression term printed: ΔG0 (coefficient of T)	69.57 J/mol/K	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Sugimoto 1980 doi	Table 6, p. 11, row 23 report
gibbs energy expression term printed: ΔG0 (constant term A)	-164300 J/mol	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Sugimoto 1980 doi	Table 6, p. 11, row 23 report
gibbs energy expression term printed: ΔG0 (constant term A)	-173730 J/mol	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Chiche 1951	Table 6, p. 11, row 2 report
gibbs energy expression term printed: ΔG0 (coefficient of T)	96.45 J/mol/K	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Chiche 1951	Table 6, p. 11, row 2 report
gibbs energy expression term printed: ΔG0 (constant term A)	-166760 J/mol	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Suzuki 1992 doi	Table 6, p. 11, row 30 report
gibbs energy expression term printed: ΔG0 (coefficient of T)	71.99 J/mol/K	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Suzuki 1992 doi	Table 6, p. 11, row 30 report
gibbs energy expression term printed: ΔG0 (coefficient of T)	70.46 J/mol/K	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Fischer 1970 doi	Table 6, p. 11, row 19 report
gibbs energy expression term printed: ΔG0 (constant term A)	-165730 J/mol	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Fischer 1970 doi	Table 6, p. 11, row 19 report
gibbs energy expression term printed: ΔG0 (constant term A)	-173850 J/mol	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites St 1988	Table 6, p. 11, row 28 report
gibbs energy expression term printed: ΔG0 (coefficient of T)	122.99 J/mol/K	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites St 1988	Table 6, p. 11, row 28 report
gibbs energy expression term printed: ΔG0 (coefficient of T)	74.61 J/mol/K	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Kiukkola 1958	Table 6, p. 11, row 3 report
gibbs energy expression term printed: ΔG0 (constant term A)	-171440 J/mol	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Kiukkola 1958	Table 6, p. 11, row 3 report
gibbs energy expression term printed: ΔG0 (constant term A)	-167390 J/mol	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Moriyama 1969	Table 6, p. 11, row 16 report
gibbs energy expression term printed: ΔG0 (coefficient of T)	71.99 J/mol/K	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Moriyama 1969	Table 6, p. 11, row 16 report
gibbs energy expression term printed: ΔG0 (coefficient of T)	72.66 J/mol/K	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Treadwell 1916	Table 6, p. 11, row 1 report
gibbs energy expression term printed: ΔG0 (constant term A)	-162580 J/mol	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Treadwell 1916	Table 6, p. 11, row 1 report
gibbs energy expression term printed: ΔG0 (constant term A)	-100340 J/mol	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites ref. 58Hil	Table 6, p. 11, row 4 report
gibbs energy expression term printed: ΔG0 (coefficient of T)	93.99 J/mol/K	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Barbi 1970	Table 6, p. 11, row 17 report
gibbs energy expression term printed: ΔG0 (constant term A)	-170220 J/mol	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Barbi 1970	Table 6, p. 11, row 17 report
gibbs energy expression term printed: ΔG0 (constant term A)	-174010 J/mol	Cu2O alloy: O 0.333333	model	[1] Hallstedt 1994	Table 6, p. 11, row 34 report
gibbs energy expression term printed: ΔG0 (coefficient of T)	125.48 J/mol/K	Cu2O alloy: O 0.333333	model	[1] Hallstedt 1994	Table 6, p. 11, row 34 report
gibbs energy expression term printed: ΔG0 (coefficient of T)	70.93 J/mol/K	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Taskinen 1981	Table 6, p. 11, row 25 report
gibbs energy expression term printed: ΔG0 (constant term A)	-166300 J/mol	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Taskinen 1981	Table 6, p. 11, row 25 report
gibbs energy expression term printed: ΔG0 (constant term A)	-165490 J/mol	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Kemori 1979 doi	Table 6, p. 11, row 22 report
gibbs energy expression term printed: ΔG0 (coefficient of T)	69.87 J/mol/K	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Kemori 1979 doi	Table 6, p. 11, row 22 report
gibbs energy expression term printed: ΔG0 (constant term A)	-166670 J/mol	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Mallika 1985 doi	Table 6, p. 11, row 26 report
gibbs energy expression term printed: ΔG0 (coefficient of T)	72.45 J/mol/K	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Mallika 1985 doi	Table 6, p. 11, row 26 report
gibbs energy expression term printed: ΔG0 (coefficient of T)	71.56 J/mol/K	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites EE 1967	Table 6, p. 11, row 10 report
gibbs energy expression term printed: ΔG0 (constant term A)	-167170 J/mol	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites EE 1967	Table 6, p. 11, row 10 report
gibbs energy expression term printed: ΔG0 (constant term A)	-173570 J/mol	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Gerlach 1968	Table 6, p. 11, row 13 report
gibbs energy expression term printed: ΔG0 (coefficient of T)	76.99 J/mol/K	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Gerlach 1968	Table 6, p. 11, row 13 report
gibbs energy expression term printed: ΔG0 (coefficient of T)	47.7 J/mol/K	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Kodera 1968 doi	Table 6, p. 11, row 14 report
gibbs energy expression term printed: ΔG0 (constant term A)	-134720 J/mol	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Kodera 1968 doi	Table 6, p. 11, row 14 report
gibbs energy expression term printed: ΔG0 (constant term A)	-174080 J/mol	Cu2O alloy: O 0.333333	model	[1] Hallstedt 1994 cites Chase 1985	Table 6, p. 11, row 32 report
gibbs energy expression term printed: ΔG0 (coefficient of T)	122.9 J/mol/K	Cu2O alloy: O 0.333333	model	[1] Hallstedt 1994 cites Chase 1985	Table 6, p. 11, row 32 report
gibbs energy expression term printed: ΔG0 (coefficient of T)	72.63 J/mol/K	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Yu 1965	Table 6, p. 11, row 8 report
gibbs energy expression term printed: ΔG0 (constant term A)	-168850 J/mol	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Yu 1965	Table 6, p. 11, row 8 report
gibbs energy expression term printed: ΔG0 (constant term A)	-166650 J/mol	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Bugden 1970	Table 6, p. 11, row 18 report
gibbs energy expression term printed: ΔG0 (coefficient of T)	71.22 J/mol/K	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Bugden 1970	Table 6, p. 11, row 18 report
gibbs energy expression term printed: ΔG0 (constant term A)	-167640 J/mol	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Charette 1968 doi	Table 6, p. 11, row 12 report
gibbs energy expression term printed: ΔG0 (coefficient of T)	71.7 J/mol/K	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Charette 1968 doi	Table 6, p. 11, row 12 report
gibbs energy expression term printed: ΔG0 (constant term A)	-167360 J/mol	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Steele 1965	Table 6, p. 11, row 7 report
gibbs energy expression term printed: ΔG0 (coefficient of T)	71.94 J/mol/K	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Steele 1965	Table 6, p. 11, row 7 report
gibbs energy expression term printed: ΔG0 (constant term A)	-167650 J/mol	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites ref. 71Slo	Table 6, p. 11, row 20 report
gibbs energy expression term printed: ΔG0 (coefficient of T)	71.47 J/mol/K	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites ref. 71Slo	Table 6, p. 11, row 20 report
gibbs energy expression term printed: ΔG0 (constant term A)	-148530 J/mol	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Kazenas 1969	Table 6, p. 11, row 15 report
gibbs energy expression term printed: ΔG0 (coefficient of T)	59.58 J/mol/K	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites Kazenas 1969	Table 6, p. 11, row 15 report
gibbs energy expression term printed: ΔG0 (coefficient of T)	69.88 J/mol/K	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites ref. 75Mos1	Table 6, p. 11, row 21 report
gibbs energy expression term printed: ΔG0 (constant term A)	-165080 J/mol	Cu2O alloy: O 0.333333	experimental	[1] Hallstedt 1994 cites ref. 75Mos1	Table 6, p. 11, row 21 report
gibbs energy expression term printed: ΔG0 (constant term A)	-169100 J/mol	Cu2O alloy: O 0.333333	model	[1] Hallstedt 1994 cites Schmid 1983 doi	Table 6, p. 11, row 31 report
gibbs energy expression term printed: ΔG0 (coefficient of T)	73.33 J/mol/K	Cu2O alloy: O 0.333333	model	[1] Hallstedt 1994 cites Schmid 1983 doi	Table 6, p. 11, row 31 report
gibbs energy expression term printed: ΔG0 constant term	-121760 J/mol	UNKNOWN	experimental	[1] Hallstedt 1994 cites EH 1920	Table 7, p. 12, row 3 report
gibbs energy expression term printed: ΔG0 coefficient of T	87.22 unknown	UNKNOWN	experimental	[1] Hallstedt 1994 cites EH 1920	Table 7, p. 12, row 3 report
gibbs energy expression term printed: ΔG0 constant term	-126880 J/mol	UNKNOWN	experimental	[1] Hallstedt 1994 cites Gadalla 1963	Table 7, p. 12, row 6 report
gibbs energy expression term printed: ΔG0 coefficient of T	90.75 unknown	UNKNOWN	experimental	[1] Hallstedt 1994 cites Gadalla 1963	Table 7, p. 12, row 6 report
gibbs energy expression term printed: ΔG0 coefficient of T	187.96 unknown	UNKNOWN	model	[1] Hallstedt 1994 cites Chase 1985	Table 7, p. 12, row 23 report
gibbs energy expression term printed: ΔG0 constant term	-144900 J/mol	UNKNOWN	model	[1] Hallstedt 1994 cites Chase 1985	Table 7, p. 12, row 23 report
gibbs energy expression term printed: ΔG0 coefficient of T	177.56 unknown	UNKNOWN	model	[1] Hallstedt 1994 cites Boud 1991	Table 7, p. 12, row 24 report
gibbs energy expression term printed: ΔG0 constant term	-138180 J/mol	UNKNOWN	model	[1] Hallstedt 1994 cites Boud 1991	Table 7, p. 12, row 24 report
gibbs energy expression term printed: ΔG0 constant term	-118520 J/mol	UNKNOWN	experimental	[1] Hallstedt 1994 cites Foote 1908 doi	Table 7, p. 12, row 1 report
gibbs energy expression term printed: ΔG0 coefficient of T	84.72 unknown	UNKNOWN	experimental	[1] Hallstedt 1994 cites Foote 1908 doi	Table 7, p. 12, row 1 report
gibbs energy expression term printed: ΔG0 constant term	-125240 J/mol	UNKNOWN	experimental	[1] Hallstedt 1994 cites Boud 1991	Table 7, p. 12, row 19 report
gibbs energy expression term printed: ΔG0 coefficient of T	89.84 unknown	UNKNOWN	experimental	[1] Hallstedt 1994 cites Boud 1991	Table 7, p. 12, row 19 report
gibbs energy expression term printed: ΔG0 constant term	-131110 J/mol	UNKNOWN	experimental	[1] Hallstedt 1994 cites Suzuki 1992 doi	Table 7, p. 12, row 20 report
gibbs energy expression term printed: ΔG0 coefficient of T	94.36 unknown	UNKNOWN	experimental	[1] Hallstedt 1994 cites Suzuki 1992 doi	Table 7, p. 12, row 20 report
gibbs energy expression term printed: ΔG0 coefficient of T	93.22 unknown	UNKNOWN	experimental	[1] Hallstedt 1994 cites Kodera 1968 doi	Table 7, p. 12, row 12 report
gibbs energy expression term printed: ΔG0 constant term	-135560 J/mol	UNKNOWN	experimental	[1] Hallstedt 1994 cites Kodera 1968 doi	Table 7, p. 12, row 12 report
gibbs energy expression term printed: ΔG0 constant term	-130450 J/mol	UNKNOWN	experimental	[1] Hallstedt 1994 cites ref. 75Jac	Table 7, p. 12, row 17 report
gibbs energy expression term printed: ΔG0 coefficient of T	93.98 unknown	UNKNOWN	experimental	[1] Hallstedt 1994 cites ref. 75Jac	Table 7, p. 12, row 17 report
gibbs energy expression term printed: ΔG0 constant term	-125350 J/mol	UNKNOWN	experimental	[1] Hallstedt 1994 cites ref. 71Slo	Table 7, p. 12, row 16 report
gibbs energy expression term printed: ΔG0 coefficient of T	88.84 unknown	UNKNOWN	experimental	[1] Hallstedt 1994 cites ref. 71Slo	Table 7, p. 12, row 16 report
gibbs energy expression term printed: ΔG0 coefficient of T	94.58 unknown	UNKNOWN	experimental	[1] Hallstedt 1994 cites Chiche 1951	Table 7, p. 12, row 4 report
gibbs energy expression term printed: ΔG0 constant term	-130920 J/mol	UNKNOWN	experimental	[1] Hallstedt 1994 cites Chiche 1951	Table 7, p. 12, row 4 report
gibbs energy expression term printed: ΔG0 constant term	-164810 J/mol	UNKNOWN	experimental	[1] Hallstedt 1994 cites Matsushita 1964	Table 7, p. 12, row 7 report
gibbs energy expression term printed: ΔG0 coefficient of T	125.18 unknown	UNKNOWN	experimental	[1] Hallstedt 1994 cites Matsushita 1964	Table 7, p. 12, row 7 report
gibbs energy expression term printed: ΔG0 coefficient of T	185.32 unknown	UNKNOWN	model	[1] Hallstedt 1994	Table 7, p. 12, row 25 report
gibbs energy expression term printed: ΔG0 constant term	-143380 J/mol	UNKNOWN	model	[1] Hallstedt 1994	Table 7, p. 12, row 25 report
gibbs energy expression term printed: ΔG0 constant term	-126930 J/mol	UNKNOWN	experimental	[1] Hallstedt 1994 cites Assayag 1955	Table 7, p. 12, row 5 report
gibbs energy expression term printed: ΔG0 coefficient of T	90.89 unknown	UNKNOWN	experimental	[1] Hallstedt 1994 cites Assayag 1955	Table 7, p. 12, row 5 report
gibbs energy expression term printed: ΔG0 coefficient of T	95.15 unknown	UNKNOWN	experimental	[1] Hallstedt 1994 cites Charette 1968 doi	Table 7, p. 12, row 11 report
gibbs energy expression term printed: ΔG0 constant term	-132040 J/mol	UNKNOWN	experimental	[1] Hallstedt 1994 cites Charette 1968 doi	Table 7, p. 12, row 11 report
gibbs energy expression term printed: ΔG0 constant term	-118510 J/mol	UNKNOWN	experimental	[1] Hallstedt 1994 cites Kazenas 1969	Table 7, p. 12, row 14 report
gibbs energy expression term printed: ΔG0 coefficient of T	76.61 unknown	UNKNOWN	experimental	[1] Hallstedt 1994 cites Kazenas 1969	Table 7, p. 12, row 14 report
gibbs energy expression term printed: ΔG0 constant term	-142220 J/mol	UNKNOWN	experimental	[1] Hallstedt 1994 cites Barbi 1970	Table 7, p. 12, row 15 report
gibbs energy expression term printed: ΔG0 coefficient of T	173.54 unknown	UNKNOWN	experimental	[1] Hallstedt 1994 cites Barbi 1970	Table 7, p. 12, row 15 report
gibbs energy expression term printed: ΔG0 constant term	-130950 J/mol	UNKNOWN	experimental	[1] Hallstedt 1994 cites Bidwell 1967 doi	Table 7, p. 12, row 9 report
gibbs energy expression term printed: ΔG0 coefficient of T	94.38 unknown	UNKNOWN	experimental	[1] Hallstedt 1994 cites Bidwell 1967 doi	Table 7, p. 12, row 9 report
gibbs energy expression term printed: ΔG0 coefficient of T	96.15 unknown	UNKNOWN	experimental	[1] Hallstedt 1994 cites St 1988	Table 7, p. 12, row 18 report
gibbs energy expression term printed: ΔG0 constant term	-134080 J/mol	UNKNOWN	experimental	[1] Hallstedt 1994 cites St 1988	Table 7, p. 12, row 18 report
gibbs energy expression term printed: ΔG0 coefficient of T	89.38 unknown	UNKNOWN	model	[1] Hallstedt 1994 cites Schmid 1983 doi	Table 7, p. 12, row 22 report
gibbs energy expression term printed: ΔG0 constant term	-128100 J/mol	UNKNOWN	model	[1] Hallstedt 1994 cites Schmid 1983 doi	Table 7, p. 12, row 22 report
gibbs energy expression term printed: ΔG0 coefficient of T	93.59 unknown	UNKNOWN	experimental	[1] Hallstedt 1994 cites Hochgeschwender 1968	Table 7, p. 12, row 10 report
gibbs energy expression term printed: ΔG0 constant term	-129700 J/mol	UNKNOWN	experimental	[1] Hallstedt 1994 cites Hochgeschwender 1968	Table 7, p. 12, row 10 report
gibbs energy expression term printed: ΔG0 constant term	-10950 J/mol	UNKNOWN	experimental	[1] Hallstedt 1994 cites ref. 64Sch	Table 7, p. 12, row 8 report
gibbs energy expression term printed: ΔG0 constant term	-134230 J/mol	UNKNOWN	experimental	[1] Hallstedt 1994 cites Treadwell 1916	Table 7, p. 12, row 2 report
gibbs energy expression term printed: ΔG0 coefficient of T	98.84 unknown	UNKNOWN	experimental	[1] Hallstedt 1994 cites Treadwell 1916	Table 7, p. 12, row 2 report
gibbs energy expression term printed: ΔG0 constant term	-132410 J/mol	UNKNOWN	experimental	[1] Hallstedt 1994 cites Suzuki 1992 doi	Table 7, p. 12, row 21 report
gibbs energy expression term printed: ΔG0 coefficient of T	96.63 unknown	UNKNOWN	experimental	[1] Hallstedt 1994 cites Suzuki 1992 doi	Table 7, p. 12, row 21 report
gibbs energy expression term printed: ΔG0 coefficient of T	96.42 unknown	UNKNOWN	experimental	[1] Hallstedt 1994 cites Rigdon 1969	Table 7, p. 12, row 13 report
gibbs energy expression term printed: ΔG0 constant term	-135000 J/mol	UNKNOWN	experimental	[1] Hallstedt 1994 cites Rigdon 1969	Table 7, p. 12, row 13 report
gibbs energy expression term printed: ΔG0 (coefficient of T)	3.86 J/mol/K	liquid Cu alloy: O 0	model	[1] Hallstedt 1994 cites Boudbne 1992	Table 3, p. 10, row 12 report
gibbs energy expression term printed: ΔG0 (constant term)	-71650 J/mol	liquid Cu alloy: O 0	model	[1] Hallstedt 1994 cites Boudbne 1992	Table 3, p. 10, row 12 report
gibbs energy expression term printed: ΔG0 (coefficient of T) [printed: −66110−7.66T]	-7.66 J/mol/K	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites ref. 70Eln	Table 3, p. 9, row 18 report
gibbs energy expression term printed: ΔG0 [printed: −66110−7.66T]	-66110 J/mol	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites ref. 70Eln	Table 3, p. 9, row 18 report
gibbs energy expression term printed: ΔG0 (coefficient of T)	-0.71 J/mol/K	liquid Cu alloy: O 0	model	[1] Hallstedt 1994 cites Schmid 1983 doi	Table 3, p. 10, row 11 report
gibbs energy expression term printed: ΔG0 (constant term)	-74100 J/mol	liquid Cu alloy: O 0	model	[1] Hallstedt 1994 cites Schmid 1983 doi	Table 3, p. 10, row 11 report
gibbs energy expression term printed: ΔG0 [printed: −66940−2.31T]	-66940 J/mol	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites Thompson 1971 doi	Table 3, p. 9, row 25 report
gibbs energy expression term printed: ΔG0 (coefficient of T) [printed: −66940−2.31T]	-2.31 J/mol/K	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites Thompson 1971 doi	Table 3, p. 9, row 25 report
gibbs energy expression term printed: ΔG0 (coefficient of T)	-5.83 J/mol/K	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites Kayahara 1981	Table 3, p. 10, row 5 report
gibbs energy expression term printed: ΔG0 (constant term)	-67040 J/mol	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites Kayahara 1981	Table 3, p. 10, row 5 report
gibbs energy expression term printed: ΔG0 [printed: −104580+17.95T]	-104580 J/mol	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites Biswas 1973 doi	Table 3, p. 9, row 27 report
gibbs energy expression term printed: ΔG0 (coefficient of T) [printed: −104580+17.95T]	17.95 J/mol/K	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites Biswas 1973 doi	Table 3, p. 9, row 27 report
gibbs energy expression term printed: ΔG0 (coefficient of T) [printed: −84262+6.76T]	6.76 J/mol/K	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites Tsukahara 1970 doi	Table 3, p. 9, row 21 report
gibbs energy expression term printed: ΔG0 [printed: −84262+6.76T]	-84262 J/mol	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites Tsukahara 1970 doi	Table 3, p. 9, row 21 report
gibbs energy expression term printed: ΔG0 [printed: −70270−2.08T]	-70270 J/mol	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites Tankins 1967	Table 3, p. 9, row 14 report
gibbs energy expression term printed: ΔG0 [printed: −73800−1.71T]	-73800 J/mol	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites E Hyt6nen and E Taskinen 1979	Table 3, p. 9, row 38 report
gibbs energy expression term printed: ΔG0 (coefficient of T) [printed: −73800−1.71T]	-1.71 J/mol/K	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites E Hyt6nen and E Taskinen 1979	Table 3, p. 9, row 38 report
gibbs energy expression term printed: ΔG0 [printed: −41550−19.87T]	-41550 J/mol	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites Belton 1965	Table 3, p. 9, row 4 report
gibbs energy expression term printed: ΔG0 (coefficient of T) [printed: −41550−19.87T]	-19.87 J/mol/K	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites Belton 1965	Table 3, p. 9, row 4 report
gibbs energy expression term printed: ΔG0 [printed: −78220+2.65T]	-78220 J/mol	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites Tankins 1972	Table 3, p. 9, row 26 report
gibbs energy expression term printed: ΔG0 (coefficient of T) [printed: −78220+2.65T]	2.65 J/mol/K	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites Tankins 1972	Table 3, p. 9, row 26 report
gibbs energy expression term printed: ΔG0 (coefficient of T) [printed: −129270+38.83T]	38.83 J/mol/K	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites Girardi 1950	Table 3, p. 9, row 2 report
gibbs energy expression term printed: ΔG0 [printed: −129270+38.83T]	-129270 J/mol	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites Girardi 1950	Table 3, p. 9, row 2 report
gibbs energy expression term printed: ΔG0 [printed: −75560−0.06T]	-75560 J/mol	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites Reimann 1967	Table 3, p. 9, row 12 report
gibbs energy expression term printed: ΔG0 (coefficient of T) [printed: −90370+10.71T]	10.71 J/mol/K	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites Oberg 1973 doi	Table 3, p. 9, row 29 report
gibbs energy expression term printed: ΔG0 [printed: −90370+10.71T]	-90370 J/mol	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites Oberg 1973 doi	Table 3, p. 9, row 29 report
gibbs energy expression term printed: ΔG0 (coefficient of T) [printed: −77450+0.38T]	0.38 J/mol/K	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites Sano 1956	Table 3, p. 9, row 3 report
gibbs energy expression term printed: ΔG0 [printed: −77450+0.38T]	-77450 J/mol	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites Sano 1956	Table 3, p. 9, row 3 report
gibbs energy expression term printed: ΔG0 [printed: −78490+1.96T]	-78490 J/mol	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites Gerlach 1968	Table 3, p. 9, row 15 report
gibbs energy expression term printed: ΔG0 (coefficient of T) [printed: −78490+1.96T]	1.96 J/mol/K	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites Gerlach 1968	Table 3, p. 9, row 15 report
gibbs energy expression term printed: ΔG0 (coefficient of T) [printed: −76560+0.54T]	0.54 J/mol/K	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites S 1977	Table 3, p. 9, row 34 report
gibbs energy expression term printed: ΔG0 [printed: −76560+0.54T]	-76560 J/mol	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites S 1977	Table 3, p. 9, row 34 report
gibbs energy expression term printed: ΔG0 [printed: −74540+0.38T]	-74540 J/mol	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites ref. 71Ois	Table 3, p. 9, row 24 report
gibbs energy expression term printed: ΔG0 (coefficient of T) [printed: −74540+0.38T]	0.38 J/mol/K	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites ref. 71Ois	Table 3, p. 9, row 24 report
gibbs energy expression term printed: ΔG0 [printed: −81280+2.90T]	-81280 J/mol	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites Kulkami 1973	Table 3, p. 9, row 28 report
gibbs energy expression term printed: ΔG0 (coefficient of T) [printed: −81280+2.90T]	2.9 J/mol/K	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites Kulkami 1973	Table 3, p. 9, row 28 report
gibbs energy expression term printed: ΔG0 (coefficient of T) [printed: −136290+30.86T]	30.86 J/mol/K	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites ref. 33All	Table 3, p. 9, row 1 report
gibbs energy expression term printed: ΔG0 [printed: −136290+30.86T]	-136290 J/mol	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites ref. 33All	Table 3, p. 9, row 1 report
gibbs energy expression term printed: ΔG0 (constant term)	-77010 J/mol	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites Taskinen 1984	Table 3, p. 10, row 9 report
gibbs energy expression term printed: ΔG0 (coefficient of T)	1.07 J/mol/K	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites Taskinen 1984	Table 3, p. 10, row 9 report
gibbs energy expression term printed: ΔG0 (constant term)	-74510 J/mol	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites ref. 81Tas1	Table 3, p. 10, row 7 report
gibbs energy expression term printed: ΔG0 [printed: −81770+4.00T]	-81770 J/mol	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites Fmehan 1969	Table 3, p. 9, row 17 report
gibbs energy expression term printed: ΔG0 (constant term)	-75500 J/mol	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites ref. 81Ots	Table 3, p. 10, row 6 report
gibbs energy expression term printed: ΔG0 (coefficient of T)	-0.12 J/mol/K	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites ref. 81Ots	Table 3, p. 10, row 6 report
gibbs energy expression term printed: ΔG0 (coefficient of T) [printed: −73220−2.18T]	-2.18 J/mol/K	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites Fischer 1966	Table 3, p. 9, row 7 report
gibbs energy expression term printed: ΔG0 [printed: −73220−2.18T]	-73220 J/mol	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites Fischer 1966	Table 3, p. 9, row 7 report
gibbs energy expression term printed: ΔG0 [printed: −75680+0.44T]	-75680 J/mol	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites ref. 67Stu	Table 3, p. 9, row 13 report
gibbs energy expression term printed: ΔG0 (coefficient of T) [printed: −75680+0.44T]	0.44 J/mol/K	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites ref. 67Stu	Table 3, p. 9, row 13 report
gibbs energy expression term printed: ΔG0 (coefficient of T)	-3.93 J/mol/K	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites E Taskinen and H 1979	Table 3, p. 10, row 3 report
gibbs energy expression term printed: ΔG0 (constant term)	-70310 J/mol	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites E Taskinen and H 1979	Table 3, p. 10, row 3 report
gibbs energy expression term printed: ΔG0 (constant term)	-78420 J/mol	liquid Cu alloy: O 0	model	[1] Hallstedt 1994	Table 3, p. 10, row 13 report
gibbs energy expression term printed: ΔG0 (coefficient of T)	22.24 J/mol/K	liquid Cu alloy: O 0	model	[1] Hallstedt 1994	Table 3, p. 10, row 13 report
gibbs energy expression term printed: ΔG0 (coefficient of T)	6.9 J/mol/K	liquid Cu alloy: O 0	model	[1] Hallstedt 1994 cites Sigworth 1974 doi	Table 3, p. 10, row 10 report
gibbs energy expression term printed: ΔG0 (constant term)	-85350 J/mol	liquid Cu alloy: O 0	model	[1] Hallstedt 1994 cites Sigworth 1974 doi	Table 3, p. 10, row 10 report
gibbs energy expression term printed: ΔG0 [printed: −72850−2.13T]	-72850 J/mol	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites Janke 1978	Table 3, p. 9, row 36 report
gibbs energy expression term printed: ΔG0 (coefficient of T) [printed: −72850−2.13T]	-2.13 J/mol/K	liquid Cu alloy: O 0	experimental	[1] Hallstedt 1994 cites Janke 1978	Table 3, p. 9, row 36 report

Sources

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

B. Hallstedt, D. Risold, L. J. Gauckler, Thermodynamic assessment of the copper-oxygen system, JPE 15, 483-499 (1994). doi:10.1007/bf02649399
L. Schramm, G. Behr, W. Löser, K. Wetzig, Thermodynamic Reassessment of the Cu-O Phase Diagram, Journal of Phase Equilibria & Diffusion 26, 605-612 (2005). doi:10.1361/154770305x74421

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). doi:10.5281/zenodo.23735569
R. Arróyave, J. Saal, D. Shin, ORCHID-Diagrams: calculated binary phase diagrams (version 2026.10), Zenodo (2026). doi:10.5281/zenodo.23735859
R. Arróyave, J. Saal, D. Shin, ORCHID-Hulls: binary convex hulls (Materials Project, OQMD, assessed CALPHAD) (version 2026.10), Zenodo (2026). doi: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). doi: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); 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; 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). 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.

@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_phase_diagrams_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Diagrams: calculated binary phase diagrams}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735859},
  url       = {https://doi.org/10.5281/zenodo.23735859}
}

@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}
}