ACIDIC BATH FOR ELECTROPLATING ZINC

摘要

The acidic bath for electroplating zinc comprises an aqueous solution of 200 to 650 g/l of zinc sulfate, 50 to 200 g/l of zinc chloride, 10 to 70 g/l of ammonium chloride, 5 to 30 g/l of sodium succinate, and 0.1 to 10 g/l of nicotinic acid amide and/or 0.01 to 0.1 g/l of ethoxylated- alpha -naphthol sulphonic acid.