Abstract
The paper presents the results of a study on the effects of various anions on the adsorption of barium sulphate in copper and nickel electrolytes. The codeposition of barium sulphate with electrodeposited copper and nickel coatings is studied in the presence of such anions as sulphate, chloride, nitrate, fluoborate and fluosilicate. An examination was made of the effect, on nickel ion adsorption, of particles which have a weak negative charge on their surface. The effect of the addition of specific multivalent metallic cations to nickel electrolytes containing negatively charged particles was investigated.