Evaluation Of Diffusion Coefficients Of Metallic Ions In Aqueous Solutions

Many techniques are available for the determination of diffusion coefficients of ions in aqueous solutions. A review of classical and modern techniques is presented. Non-electrochemical methods are discussed briefly. Electrochemical methods reviewed include chronoamperometry, chronopotentiometry, polarography, and hydrodynamics. Selected values of the diffusion coefficients determined by these electrochemical methods of the metallic ions Ag-I Bi-III, Cd-II, Cu-II, In-III, Pb-II, Tl-I, and Zn-II are presented.