Butanedioic acid, 2,3-dihydroxy- (2R,3R)-, potassium sodium salt, hydrate (1:1:1:4)
- Formula: C4H4KNaO6·H8O4
- Molecular weight: 282.2201
- IUPAC Standard InChI: InChI=1S/C4H6O6.K.Na.4H2O/c5-1(3(7)8)2(6)4(9)10;;;;;;/h1-2,5-6H,(H,7,8)(H,9,10);;;4*1H2/q;2*+1;;;;/p-2
- IUPAC Standard InChIKey: VZOPRCCTKLAGPN-UHFFFAOYSA-L
- CAS Registry Number: 6381-59-5
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: Potassium sodium tartrate tetra hydrate; Sodium potassium tartrate 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 |
|---|---|---|---|
| 386.13 | 298.15 | Tatsumi, Matsuo, et al., 1978 | T = 190 to 308 K. |
| 389.1 | 300. | Hicks and Hooley, 1938 | T = 15 to 340 K. |
| 385.9 | 298.15 | Wilson, 1938 | T = 243 to 303 K. Cp(c) = 1.290 + 0.0031t/°C J/g (243 to 303 K), large single cystals. Cp(298.15 K) = 387.8 J/mol*K, Cp = 1.289 + 0.0034t/°C J/g (243 to 303 K), crystalline powder. |
References
Go To: Top, Condensed phase thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Tatsumi, Matsuo, et al., 1978
Tatsumi, M.; Matsuo, T.; Suga, H.; Seki, S.,
Phase transitions of Rochelle salt as studied by high-resolution heat capacity measurements,
J. Phys. Chem. Solids, 1978, 39, 427-434. [all data]
Hicks and Hooley, 1938
Hicks, J.F.G., Jr.; Hooley, J.G.,
The heat capacity of potassium sodium tartrate tetrahydrate from 15 to 340°K,
J. Am. Chem. Soc., 1938, 60, 2994-2997. [all data]
Wilson, 1938
Wilson, A.J.C.,
The heat capacity of Rochelle Salt between -30° and +30°C,
Phys. Rev., 1938, 54, 1103-1109. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, References
- Symbols used in this document:
Cp,solid Constant pressure heat capacity of solid - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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