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 hydrodnamics. 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.