Conductometric study of ion—ion and ion-solvent interaction—1. Conductances of lithium acetate in water, methanol and 50, 60 and 70% (W/W) dioxane—water mixtures at 25°C

Abstract

Conductances of lithium acetate in water, methanol and 50, 60 and 70% (w/w) dioxane—water mixtures were measured. The data was analysed using the Fuoss-Hsia equation in the form of Fernandez—Prini coefficients to find the ion-pair formation constants ( K A ) and molar conductances at infinite dilution. The log K A vs 1/ D plot is a straight line passing through the origin in agreement with the Dension—Ramsey theory. The Walden products, solvation numbers and solvodynamic radii were also calculated. The results indicate the formation of solvent separated ion-pairs (SSIP).