Journal of Solution Chemistry

, Volume 20, Issue 2, pp 221–232 | Cite as

The solubility and solvation of salts in mixed nonaqueous solvents. 1. Potassium halides in mixed aprotic solvents

  • Abdel Karim S. Labban
  • Yizhak Marcus


The solubilities of potassium fluoride, chloride, and bromide in acetonitrile, N,N-dimethylformamide, and dimethylsulfoxide and in binary mixtures of these solvents were determined at 25°C. The standard molar Gibbs free energies of solution, ΔsolnG°, in the neat solvents were related to the polarizabilities and basicities of the anions and the dipole moments and acidities of the solvents. The values of ΔsolnG° in the mixtures were fitted by expressions from the quasi-lattice quasi-chemical theory. The mean number of each kind of solvent in the nearest environment of the ions was obtained from these results.

Key Words

Solubility mixed solvents anion solvation quasi-lattice quasi-chemical theory 


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Copyright information

© Plenum Publishing Corporation 1991

Authors and Affiliations

  • Abdel Karim S. Labban
    • 1
  • Yizhak Marcus
    • 1
  1. 1.Department of Inorganic and Analytical ChemistryThe Hebrew University of JerusalemJerusalemIsrael

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