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Concentration Polarization

1. The ratio of the salt concentration in the membrane boundary layer to the salt concentration in the bulk stream. The most common and serious problem resulting from concentration polarization is the increasing tendency for precipitation of sparingly soluble salts and the deposition of particulate matter on the membrane surface. 2. Used in corrosion studies to indicate a depletion of ions near an electrode. 3. The basis for chemical analysis by a polarograph.