Acetic acid, magnesium salt, hydrate (2:1:4)
- Formula: C4H6MgO4·H8O4
- Molecular weight: 214.4542
- IUPAC Standard InChI: InChI=1S/2C2H4O2.Mg.4H2O/c2*1-2(3)4;;;;;/h2*1H3,(H,3,4);;4*1H2/q;;+2;;;;/p-2
- IUPAC Standard InChIKey: XKPKPGCRSHFTKM-UHFFFAOYSA-L
- CAS Registry Number: 16674-78-5
- Chemical structure:
This structure is also available as a 2d Mol file - Species with the same structure:
- Other names: Magnesiumacetat-tetrahydrat; Magnesium acetate tetrahydrate; Magnesium diethanoate tetrahydrate
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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 (J/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 321.0 | 298.15 | Meisingset and Gronvold, 1984 | T = 270 to 400 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 |
|---|---|---|---|---|---|
| 35.800 | 336. | crystaline | Meisingset and Gronvold, 1984 | Transition of tetrahydrate to less hydrated salt, presumably the monohydrate. |
Entropy of phase transition
| ΔStrs (J/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
|---|---|---|---|---|---|
| 106.5 | 336. | crystaline | Meisingset and Gronvold, 1984 | Transition |
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.
Meisingset and Gronvold, 1984
Meisingset, K.K.; Gronvold, F.,
Thermodynamic properties and phase transitions of salt hydrates between 270 and 400 K. III. CH3CO2Na.3H2O, CH3CO2Li.2H2O, and (CH3CO2)2Mg.4H2O,
J. Chem. Thermodynam., 1984, 16, 523-536. [all data]
Notes
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- 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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