Betaine calcium chloride dihydrate
- Formula: C5H11CaCl2NO2·H4O2
- Molecular weight: 264.161
- CAS Registry Number: 90268-02-3
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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 |
|---|---|---|---|---|---|
| 0.00508 | 47. | crystaline, VI | crystaline, V | Brill, Gmelin, et al., 1990 | |
| 0.01190 | 76. | crystaline, V | crystaline, IV | Brill, Gmelin, et al., 1990 | |
| 0.00560 | 116. | crystaline, IV | crystaline, III | Brill, Gmelin, et al., 1990 | |
| 0.00158 | 127. | crystaline, III | crystaline, II | Brill, Gmelin, et al., 1990 | |
| 0.1874 | 164. | crystaline, II | crystaline, I | Brill, Gmelin, et al., 1990 |
Entropy of phase transition
| ΔStrs (J/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
|---|---|---|---|---|---|
| 0.11 | 47. | crystaline, VI | crystaline, V | Brill, Gmelin, et al., 1990 | |
| 0.16 | 76. | crystaline, V | crystaline, IV | Brill, Gmelin, et al., 1990 | |
| 0.05 | 116. | crystaline, IV | crystaline, III | Brill, Gmelin, et al., 1990 | |
| 0.01 | 127. | crystaline, III | crystaline, II | Brill, Gmelin, et al., 1990 | |
| 1.28 | 164. | crystaline, II | crystaline, I | Brill, Gmelin, et al., 1990 |
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.
Brill, Gmelin, et al., 1990
Brill, W.; Gmelin, E.; Ehses, K.H.,
Specific heat of betaine calcium chloride dihydrate,
Ferroelectrics, 1990, 103, 25-33. [all data]
Notes
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- Symbols used in this document:
ΔHtrs Enthalpy of phase transition ΔStrs Entropy of phase transition - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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