USE OF EXPERIMENTAL DIFFUSION-COEFFICIENTS TO PROBE SOLUTE-SOLUTE ANDSOLUTE-SOLVENT INTERACTIONS IN ELECTROLYTE-SOLUTIONS

Interactions between ions have a very significant effect on the proper ties of electrolytes, This paper discusses two approaches to the study of interactions in electrolyte solutions using experimental transport coefficients. One is based on generating generalized transport coeffi cients from experimental data. A number of variants have appeared in t he literature, the preferred ones, distinct diffusion coefficients, as formulated by Friedman are used here. Their usefulness and interpreta tion in terms of ionic interactions are discussed. One limitation of t he above is that they are based on solvent-averaged potentials, The ot her approach deals with our attempts to use the water diffusion coeffi cient and shear viscosity data to gain insights into ion-solvent inter actions and into hydration dynamics of muitivalent cations.