oxamic acid
- Formula: C2H3NO3
- Molecular weight: 89.0501
- IUPAC Standard InChIKey: SOWBFZRMHSNYGE-UHFFFAOYSA-N
- CAS Registry Number: 471-47-6
- Chemical structure:
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Gas phase thermochemistry data
Go To: Top, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -552.3 ± 2.2 | kJ/mol | Ccr | Nunez, Barral, et al., 1988 |
Condensed phase thermochemistry data
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°solid | -661.2 ± 0.8 | kJ/mol | Ccr | Nunez, Barral, et al., 1988 | |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°solid | -554.6 ± 0.7 | kJ/mol | Ccr | Nunez, Barral, et al., 1988 |
Phase change data
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled as indicated in comments:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tfus | 482. | K | N/A | Bradley and Cleasby, 1953 | Uncertainty assigned by TRC = 6. K; with decomposition; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔsubH° | 108.9 ± 2.1 | kJ/mol | ME | Nunez, Barral, et al., 1988 | AC |
ΔsubH° | 107.95 | kJ/mol | V | Bradley and Cleasby, 1953, 2 | ALS |
Enthalpy of sublimation
ΔsubH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
107.9 | 359. | ME | Bradley and Cleasby, 1953 | Based on data from 355. to 363. K. See also Jones, 1960 and Stephenson and Malanowski, 1987.; AC |
Gas phase ion energetics data
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
10.51 | PE | Meeks, Arnett, et al., 1975 | Vertical value |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Nunez, Barral, et al., 1988
Nunez, L.; Barral, L.; Pilcher, G.,
Enthalpies of combustion of oxamic acid, oxamide, and dithiooxamide,
J. Chem. Thermodyn., 1988, 20, 1211-1216. [all data]
Bradley and Cleasby, 1953
Bradley, R.S.; Cleasby, T.G.,
346. The vapour pressure and lattice energy of hydrogen-bonded crystals. Part I. Oxamide, oxamic acid, and rubeanic acid,
J. Chem. Soc., 1953, 1681, https://doi.org/10.1039/jr9530001681
. [all data]
Bradley and Cleasby, 1953, 2
Bradley, R.S.; Cleasby, T.G.,
The vapour pressure and lattice energy of hydrogen-bonded crystals. Part I. Oxamide, oxamic acid, and rubeanie acid,
J. Chem. Soc., 1953, 1681-16. [all data]
Jones, 1960
Jones, A.H.,
Sublimation Pressure Data for Organic Compounds.,
J. Chem. Eng. Data, 1960, 5, 2, 196-200, https://doi.org/10.1021/je60006a019
. [all data]
Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw,
Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2
. [all data]
Meeks, Arnett, et al., 1975
Meeks, J.L.; Arnett, J.F.; Larson, D.B.; McGlynn, S.P.,
Photoelectron spectroscopy of carbonyls. Urea, oxamide, oxalic acid and oxamic acid,
J. Am. Chem. Soc., 1975, 97, 3905. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, References
- Symbols used in this document:
Tfus Fusion (melting) point ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions ΔsubH Enthalpy of sublimation ΔsubH° Enthalpy of sublimation at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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