Bis(n-heptylammonium)tetrachloromanganate
- Formula: C14H36Cl4MnN2
- Molecular weight: 429.199
- CAS Registry Number: 63441-99-6
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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
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| S°solid,1 bar | 772.9 | J/mol*K | N/A | White, Davies, et al., 1983 |
Constant pressure heat capacity of solid
| Cp,solid (J/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 653.0 | 298.15 | White, Davies, et al., 1983 | T = 10 to 325 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 (kJ/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
|---|---|---|---|---|---|
| 16.930 | 247.95 | crystaline, III | crystaline, II | White, Davies, et al., 1983 | |
| 10.197 | 313.8 | crystaline, II | crystaline, I | White, Davies, et al., 1983 |
Entropy of phase transition
| ΔStrs (J/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
|---|---|---|---|---|---|
| 68.2 | 247.95 | crystaline, III | crystaline, II | White, Davies, et al., 1983 | |
| 32.5 | 313.8 | crystaline, II | crystaline, I | White, Davies, et al., 1983 |
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.
White, Davies, et al., 1983
White, M.A.; Davies, N.J.; Staveley, L.A.K.,
Polymorphism in bis(n-heptylammonium) tetrachloromanganate and -cadmate as determined by heat-capacity measurements from 10 to 325 K, J. Chem. Soc.,
Faraday Trans., 1983, 2 79, 1653-1661. [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 S°solid,1 bar Entropy of solid at standard conditions (1 bar) ΔHtrs Enthalpy of phase transition ΔStrs Entropy of phase transition - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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