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(Solid+liquid) isothermal evaporation phase equilibria in the aqueous ternary system (Li2SO4 +MgSO4 +H2O) at T =308.15K
- Source :
-
Journal of Chemical Thermodynamics . Jun2008, Vol. 40 Issue 6, p1007-1011. 5p. - Publication Year :
- 2008
-
Abstract
- Abstract: The solubility and the density in the aqueous ternary system (Li2SO4 +MgSO4 +H2O) at T =308.15K were determined by the isothermal evaporation. Our experimental results permitted the construction of the phase diagram and the plot of density against composition. It was found that there is one eutectic point for (Li2SO4 ·H2O+MgSO4 ·7H2O), two univariant curves, and two crystallization regions corresponding to lithium sulphate monohydrate (Li2SO4 ·H2O) and epsomite (MgSO4 ·7H2O). The system belongs to a simple co-saturated type, and neither double salts nor solid solution was found. Based on the Pitzer ion-interaction model and its extended HW models of aqueous electrolyte solution, the solubility of the ternary system at T =308.15K has been calculated. The predicted solubility agrees well with the experimental values. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 00219614
- Volume :
- 40
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Journal of Chemical Thermodynamics
- Publication Type :
- Academic Journal
- Accession number :
- 32047309
- Full Text :
- https://doi.org/10.1016/j.jct.2008.02.008