# InN: enthalpy of formation > Enthalpy of formation of InN: 17 literature value(s) with sources, pages and quotes, from ORCHID. HTML: https://data.orchid-project.org/compounds/InN.html · Markdown: https://data.orchid-project.org/compounds/InN.md 17 accepted literature formation-enthalpy value(s) (experimental 8, model 3, unspecified 6). Systems: [In–N](https://data.orchid-project.org/systems/IN-N.html) ## Literature values Table: Enthalpy of formation of InN reported in the literature (17) | Value | Phase as printed | T (K) | Class | Method | System | Source | Location | Quote | |---:|---|---:|---|---|---|---|---|---| | -143.5 per formula unit | InN | 298.15 | experimental | Decomposition of InN (+In) powders, high pressure autoclave-derived from P(T) curve slope | [In–N](https://data.orchid-project.org/systems/IN-N.html) | [1] Onderka 2002; _cites MacChesney 1970_ | Table III, p. 10, row 2; `ORC-5ZZPDB3WXP` | | | -136.4 per formula unit ± 19 | InN | 298.15 | experimental | Mass-spectrometer, Knudsen cell, derived from P(T) curve slope | [In–N](https://data.orchid-project.org/systems/IN-N.html) | [1] Onderka 2002; _cites Vorobev 1973_ | Table III, p. 10, row 5; `ORC-K2CR4AML5C` | | | -132.6 per formula unit ± 6 | InN | 298.15 | experimental | Mass-spectrometer, Knudsen cell, derived from P(T) curve slope | [In–N](https://data.orchid-project.org/systems/IN-N.html) | [1] Onderka 2002; _cites Vorobev 1971_ | Table III, p. 10, row 4; `ORC-KG247AZFLI` | | | -131.4 per formula unit ± 7 | InN | 298.15 | experimental | Mass-spectrometer static, derived from P(T) curve slope | [In–N](https://data.orchid-project.org/systems/IN-N.html) | [1] Onderka 2002; _cites Jones 1987_ | Table III, p. 10, row 7; `ORC-JPAAK7XKGA` | | | -127.6 per formula unit ± 3 | InN | 298.15 | experimental | Mass-spectrometer, Knudsen cell, derived from P(T) curve slope | [In–N](https://data.orchid-project.org/systems/IN-N.html) | [1] Onderka 2002; _cites Gordienko 1977_ | Table III, p. 10, row 6; `ORC-K6P6OQMYWH` | | | -113 per formula unit ± 42 | InN | 298.15 | experimental | Mass-spectrometer, static, derived from P(T) curve slope | [In–N](https://data.orchid-project.org/systems/IN-N.html) | [1] Onderka 2002; _cites Vorobev 1971_ | Table III, p. 10, row 3; `ORC-YPILMCKBB5` | | | -28.6 per formula unit ± 9.2 | InN | 298.15 | experimental | Oxidative drop solution calorimetry at 975 K | [In–N](https://data.orchid-project.org/systems/IN-N.html) | [1] Onderka 2002; _cites Ranade 2001_ | Table III, p. 10, row 8; `ORC-N4XTQZIX2C` | | | -19.2 per formula unit ± 2 | InN | 298.15 | experimental | Combustion of InN in a bomb-calorimeter (b) | [In–N](https://data.orchid-project.org/systems/IN-N.html) | [1] Onderka 2002; _cites Hahn 1940_ | Table III, p. 10, row 10; `ORC-FXZ7TGT3UG` | | | -96.5 per formula unit | InN | 298.15 | model | Calculated from S°298(InN) and T^LSG = 773 K at 1 bar, first choice | [In–N](https://data.orchid-project.org/systems/IN-N.html) | [1] Onderka 2002 | Table III, p. 10, row 11; `ORC-B6ADNN3GTU` | | | -96.5 kJ/mol (basis unstated) | InN | 298.15 | model | | [In–N](https://data.orchid-project.org/systems/IN-N.html) | [1] Onderka 2002 | Table AI, p. 18, row 34; `ORC-XNU2NBVYIG.1ee054` | | | -28.6 kJ/mol (basis unstated) | InN | 298.15 | model | | [In–N](https://data.orchid-project.org/systems/IN-N.html) | [1] Onderka 2002 | Table AI, p. 18, row 34; `ORC-XNU2NBVYIG.6e34c4` | | | -133.1 kJ/mol (basis unstated) | InN | 298.15 | unspecified | | [In–N](https://data.orchid-project.org/systems/IN-N.html) | [1] Onderka 2002; _cites Vorobev 1973_ | Table AI, p. 18, row 42; `ORC-R7FZQR2TXE` | | | -129.3 kJ/mol (basis unstated) | InN | 298.15 | unspecified | | [In–N](https://data.orchid-project.org/systems/IN-N.html) | [1] Onderka 2002; _cites Vorobev 1971_ | Table AI, p. 18, row 41; `ORC-AH33WT326L.21e423` | | | -128.1 kJ/mol (basis unstated) | InN | 298.15 | unspecified | | [In–N](https://data.orchid-project.org/systems/IN-N.html) | [1] Onderka 2002; _cites Jones 1987_ | Table AI, p. 18, row 44; `ORC-UFKYGNYLFG` | | | -124.3 kJ/mol (basis unstated) | InN | 298.15 | unspecified | | [In–N](https://data.orchid-project.org/systems/IN-N.html) | [1] Onderka 2002; _cites Gordienko 1977_ | Table AI, p. 18, row 43; `ORC-MAVHC4CD3V` | | | -109.7 kJ/mol (basis unstated) | InN | 298.15 | unspecified | | [In–N](https://data.orchid-project.org/systems/IN-N.html) | [1] Onderka 2002; _cites Vorobev 1971_ | Table AI, p. 18, row 41; `ORC-AH33WT326L.7e4e05` | | | -19.2 kJ/mol (basis unstated) | InN | 298.15 | unspecified | | [In–N](https://data.orchid-project.org/systems/IN-N.html) | [1] Onderka 2002; _cites Hahn 1940_ | Table AI, p. 18, row 40; `ORC-OWH4QAWTAQ` | | ### Uncertainty budget Components kept separate, in the value's unit (literature [SCHEMA.md](https://data.orchid-project.org/literature/SCHEMA.md), [UNCERTAINTY_CALIBRATION.md](https://data.orchid-project.org/literature/UNCERTAINTY_CALIBRATION.md)): effective = max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter). The method floor is the robust between-study scatter of the method class in ORCHID (calibrated) or a documented prior; printed values and printed uncertainties are unchanged. Table: Uncertainty budget of the literature values of InN | Value | Unit | Printed | Reading | Method (class, basis) | Composition | Scatter | Conversion | Effective | |---:|---|---:|---:|---|---:|---:|---:|---:| | -143.5 | per formula unit | | 0.05 | unit 'per formula unit' not convertible to kJ/mol-atom | | | | unit 'per formula unit' not convertible to kJ/mol-atom | | -136.4 | per formula unit | 19 | 0.05 | unit 'per formula unit' not convertible to kJ/mol-atom | | | | 19 | | -132.6 | per formula unit | 6 | 0.05 | unit 'per formula unit' not convertible to kJ/mol-atom | | | | 6 | | -131.4 | per formula unit | 7 | 0.05 | unit 'per formula unit' not convertible to kJ/mol-atom | | | | 7 | | -127.6 | per formula unit | 3 | 0.05 | unit 'per formula unit' not convertible to kJ/mol-atom | | | | 3 | | -113 | per formula unit | 42 | 0.05 | unit 'per formula unit' not convertible to kJ/mol-atom | | | | 42 | | -28.6 | per formula unit | 9.2 | 0.05 | unit 'per formula unit' not convertible to kJ/mol-atom | | | | 9.2 | | -19.2 | per formula unit | 2 | 0.05 | unit 'per formula unit' not convertible to kJ/mol-atom | | | | 2 | | -96.5 | per formula unit | | 0.05 | unit 'per formula unit' not convertible to kJ/mol-atom | | | | unit 'per formula unit' not convertible to kJ/mol-atom | | -96.5 | kJ/mol (basis unstated) | | 0.05 | 7.8 (model_calculated, calibrated) | | | | 7.8 | | -28.6 | kJ/mol (basis unstated) | | 0.05 | 7.8 (model_calculated, calibrated) | | | | 7.8 | | -133.1 | kJ/mol (basis unstated) | | 0.05 | 7 (unknown, calibrated) | | | | 7 | | -129.3 | kJ/mol (basis unstated) | | 0.05 | 7 (unknown, calibrated) | | | | 7 | | -128.1 | kJ/mol (basis unstated) | | 0.05 | 7 (unknown, calibrated) | | | | 7 | | -124.3 | kJ/mol (basis unstated) | | 0.05 | 7 (unknown, calibrated) | | | | 7 | | -109.7 | kJ/mol (basis unstated) | | 0.05 | 7 (unknown, calibrated) | | | | 7 | | -19.2 | kJ/mol (basis unstated) | | 0.05 | 7 (unknown, calibrated) | | | | 7 | ## Sources 1. B. Onderka, J. Unland, R. Schmid-Fetzer, Thermodynamics and phase stability in the In–N system, J. Mater. Res. 17, 3065-3083 (2002). [doi:10.1557/jmr.2002.0445](https://doi.org/10.1557/jmr.2002.0445) ## 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-Parity: DFT-vs-experiment formation-enthalpy benchmark (version 2026.10; Version 1, machine-extracted), Zenodo (2026). https://doi.org/10.5281/zenodo.23735943 - 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); G. Kim, S. V. Meschel, P. Nash, W. Chen, Experimental formation enthalpies for intermetallic phases and other inorganic compounds, Scientific Data 4 (2017) 170162, https://doi.org/10.1038/sdata.2017.162; 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_dft_benchmark_2026, author = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon}, title = {{ORCHID-Parity: DFT-vs-experiment formation-enthalpy benchmark}}, version = {2026.10}, publisher = {Zenodo}, year = {2026}, doi = {10.5281/zenodo.23735943}, url = {https://doi.org/10.5281/zenodo.23735943}, note = {Version 1, machine-extracted} } @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=\, carrying only the record id, source and value; [how to contribute](https://orchid-project.org/contribute/).