Self-diffusion of cesium ions in hydrous manganese dioxide from mixed solvent solutions

Self-diffusion coefficients (D̄) of cesium ions in hydrous manganese dioxide have been determined radiochemically at different apparent capacities in aqueous and alcoholic solutions. The apparent capacity decreases in the order n-propanol>methanol and is determined by both ion–solvent and ion–ion interaction. Self-diffusion coefficients (D̄) have been determined in all different media by using Patersonʹs approximation equation. Also, the effect of adding CsCl to the external aqueous or alcoholic hydroxide solution has been studied.