potassium propionate
- Formula: C3H5KO2
- Molecular weight: 112.1689
- IUPAC Standard InChI: InChI=1S/C3H6O2.K/c1-2-3(4)5;/h2H2,1H3,(H,4,5);/q;+1/p-1
- IUPAC Standard InChIKey: BWILYWWHXDGKQA-UHFFFAOYSA-M
- CAS Registry Number: 327-62-8
- Chemical structure:
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Phase change data
Go To: Top, References, Notes
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
DH - Eugene S. Domalski and Elizabeth D. Hearing
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Tfus | 638.3 | K | N/A | Ferloni, Sanesi, et al., 1975 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.1 K; TRC |
| Quantity | Value | Units | Method | Reference | Comment |
| Ttriple | 638.3 | K | N/A | Franzosini and Westrum, 1984 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.1 K; TRC |
Temperature of phase transition
| Ttrs (K) | Initial Phase | Final Phase | Reference | Comment |
|---|---|---|---|---|
| 372.5 | crystaline, II | crystaline, I | Franzosini and Westrum, 1984, 2 | DH |
| 638.3 | crystaline, I | liquid | Franzosini and Westrum, 1984, 2 | DH |
Enthalpy of phase transition
| ΔHtrs (kJ/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
|---|---|---|---|---|---|
| 0.515 | 255. | crystaline, III | crystaline, II | Franzosini and Westrum, 1984, 2 | DH |
| 0.330 | 258. | crystaline, III | crystaline, II | Ferloni, Sanesi, et al., 1975, 2 | DH |
| 1.715 | 352.5 | crystaline, II | crystaline, I | Ferloni, Sanesi, et al., 1975, 2 | DH |
| 20.125 | 638.3 | crystaline, I | liquid | Ferloni, Sanesi, et al., 1975, 2 | DH |
Entropy of phase transition
| ΔStrs (J/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
|---|---|---|---|---|---|
| 2.02 | 255. | crystaline, III | crystaline, II | Franzosini and Westrum, 1984, 2 | DH |
| 1.3 | 258. | crystaline, III | crystaline, II | Ferloni, Sanesi, et al., 1975, 2 | DH |
| 4.9 | 352.5 | crystaline, II | crystaline, I | Ferloni, Sanesi, et al., 1975, 2 | DH |
| 31.5 | 638.3 | crystaline, I | liquid | Ferloni, Sanesi, et al., 1975, 2 | DH |
References
Go To: Top, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Ferloni, Sanesi, et al., 1975
Ferloni, P.; Sanesi, M.; Franzosini, P.,
Phase transitions in the alkali C1-n.C4 alkanoates,
Z. Naturforsch., A: Phys., Phys. Chem., Kosmophys., 1975, 30, 1447-57. [all data]
Franzosini and Westrum, 1984
Franzosini, P.; Westrum, E.F.,
Thermophysics of metal alkanoates III. Heat capacities and thermodynamic properties of lithium and potassium propanoates,
J. Chem. Thermodyn., 1984, 16, 81. [all data]
Franzosini and Westrum, 1984, 2
Franzosini, P.; Westrum, E.F.,
Jr., Thermophysics of metal alkanoates. III. Heat capacities and thermodynamic properties of lithium and potassium propanoates,
J. Chem. Thermodynam., 1984, 16, 81-90. [all data]
Ferloni, Sanesi, et al., 1975, 2
Ferloni, P.; Sanesi, M.; Franzosini, P.; C4 alkanoates, Phase transitions in the alkali C1-n.,
Z. Naturforsch. 30a, 1975, 1447-1454. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Tfus Fusion (melting) point Ttriple Triple point temperature Ttrs Temperature of phase transition ΔHtrs Enthalpy of phase transition ΔStrs Entropy of phase transition - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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