Urea-trioxane inclusion compound
- Formula: C10H22N2O10
- Molecular weight: 330.2891
- CAS Registry Number: 20351-17-1
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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 |
|---|---|---|---|
| 95.60 | 298.15 | Claude, Clement, et al., 1977 | crystaline, I phase; T = 15 to 300 K. |
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 |
|---|---|---|---|---|---|
| 0.1709 | 189.91 | crystaline, IV | crystaline, III | Claude, Clement, et al., 1977 | S given in article does not agree with H and T. |
| 0.1514 | 200.8 | crystaline, III | crystaline, II | Claude, Clement, et al., 1977 | S given in article does not agree with H and T. |
| 0.4489 | 242.51 | crystaline, II | crystaline, I | Claude, Clement, et al., 1977 | S given in article does not agree with H and T. |
Entropy of phase transition
| ΔStrs (cal/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
|---|---|---|---|---|---|
| 0.901 | 189.91 | crystaline, IV | crystaline, III | Claude, Clement, et al., 1977 | S |
| 0.753 | 200.8 | crystaline, III | crystaline, II | Claude, Clement, et al., 1977 | S |
| 1.85 | 242.51 | crystaline, II | crystaline, I | Claude, Clement, et al., 1977 | S |
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.
Claude, Clement, et al., 1977
Claude, R.; Clement, R.; Dworkin, A.,
Heat capacity of urea-trioxane inclusion compound,
J. Chem. Thermodynam., 1977, 9, 1199-1204. [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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