An alternative methodology for determining transport parameters of electrolytes in mixed solvents from concentration cells, without prior knowledge of activity coefficients

Abstract

An alternative methodology is described for the determination of transport parameters of electrolytes in nonaqueous or aqueous-organic solvents from concentration cells, which neither requires prior knowledge of electrolyte activity coefficients nor of any other thermodynamic function related to the latter. The reliability of this new procedure is tested against the older one, using solutions of KCl in (methanol+water) and LiCl in (1,4-dioxane+water) solvent mixtures, and the conditions for its applicability to any aqueous-organic or nonaqueous electrolyte are described.