| Autor: |
Kalinkin, A. M., Vasin, S. K., Antropova, O. V. |
| Zdroj: |
The Journal of Chemical Thermodynamics; January 1994, Vol. 26 Issue: 1 p91-100, 10p |
| Abstrakt: |
The phase-equilibrium diagram of (lithium sulfate + sodium sulfate + rubidium sulfate)(aq) at T = 298.15 K has been calculated using Pitzer et al.'s equations. A new compound 5Li2SO4·Na2SO4·2Rb2SO4·2H2O has been isolated. The results of the calculation have been confirmed by an experimental study of the solubility. The molar Gibbs free energy of formation of the triple sulfate at T = 298.15 K according to the reaction: 5Li2SO4·H2O(cr) + Na2SO4·10H2O(cr) + 2Rb2SO4(cr) = 5Li2SO4·Na2SO4· 2Rb2SO4·2H2O(cr) + 13H2O(1) was found to be ΔcGom = -(39.2 ± 0.5) kJ·mol-1 (po = 105 Pa). Copyright 1994, 1999 Academic Press |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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