Electrodeposition of zinc from bromide-based electrolytes

Zinc coatings are normally obtained from chloride and non-cyanide alkaline baths. The environmental corrosion and electrolyte sensitivity towards meta llic impurities limit the use of chloride electrolytes. Reduced cathode eff iciency and effluent treatment do not permit the use of non-cyanide zinc pl ating baths to a greater extent, There is, therefore, a need to search for a better electrolyte. In this study, the details of zinc plating on mild st eel from bromide-based electrolytes using Hull cell studies are presented, and the results are discussed.