Byelyanovs'ka O. Anode treatment of tin coatings in alkaline electrolytes

Reactions on anode polarized tin electrode. Elaboration of scientific bases of new ecologically safe technology of anode finish processing of tin coverages. Investigation Methods: voltammetry with linear potential sweep, self-activation curves registration, test of protective properties of conversion coverages in sulfur-containing media, qualitative analysis. A forming possibility on tin of film with anomalous high corrosive resistance by anode processing in alkaline metals hydroxide solutions has been established. An electrolyte composition and regime of high speed anode processing tin coverages, which allowed to form corrosively-firm films, not containing the compounds Cr(VI) is worked up. Mechanism of anode reactions in system Sn| OH- and technology of velocity anodizing tin of coverages are оffered for the first time. Use Field: electroplating, finish processing and anodizing.