Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5413597 | Journal of Molecular Liquids | 2007 | 7 Pages |
Abstract
Electric conductivities of diluted magnesium sulfate solutions in binary mixtures of 1,4-dioxane with water were measured covering a solvent composition range up to 50 wt.% of 1,4-dioxane at temperatures from 5 to 35 °C. Evaluation of the limiting molar conductivity Îâ and the association constant KA is based on the chemical model of electrolyte solutions, including short-range forces. From the temperature dependence of the limiting molar conductivities Eyring's enthalpy of activation of charge transport was estimated. The standard Gibbs energy, enthalpy and entropy of the ion-pairing process were calculated from the temperature dependence of the ion-association constants.
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Authors
M. BeÅ¡ter-RogaÄ, N. Hauptman, J. Barthel,