Hydrazinium hydrogen oxalate
- Formula: C2H6N2O4
- Molecular weight: 122.0800
- IUPAC Standard InChI: InChI=1S/C2H2O4.H4N2/c3-1(4)2(5)6;1-2/h(H,3,4)(H,5,6);1-2H2
- IUPAC Standard InChIKey: LOEUCBBZEHMJQN-UHFFFAOYSA-N
- CAS Registry Number: 20321-02-2
- Chemical structure:
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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: Eugene S. Domalski and Elizabeth D. Hearing
Constant pressure heat capacity of solid
| Cp,solid (cal/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 37.67 | 299.47 | Matsuo and Suga, 1986 | T = 14 to 300 K. Value is unsmoothed experimental datum. |
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 by: Eugene S. Domalski and Elizabeth D. Hearing
Enthalpy of phase transition
| ΔHtrs (kcal/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
|---|---|---|---|---|---|
| 0.2605 | 217.6 | crystaline, II | crystaline, I | Matsuo and Suga, 1986 |
Entropy of phase transition
| ΔStrs (cal/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
|---|---|---|---|---|---|
| 0.999 | 217.6 | crystaline, II | crystaline, I | Matsuo and Suga, 1986 |
References
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Matsuo and Suga, 1986
Matsuo, T.; Suga, H.,
Phase transition in hydrazinium hydrogen oxalate. A calorimetric study of the short hydrogen bond system,
Thermochim. Acta, 1986, 109, 63-73. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, References
- Symbols used in this document:
Cp,solid Constant pressure heat capacity of solid ΔHtrs Enthalpy of phase transition ΔStrs Entropy of phase transition - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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