ALKALIC CYANIDE-FREE ZINC BATH AND PROCEDURES FOR GALVANIC DEPOSITION OF ZINC COATING WHEN USING THIS BATH

摘要

An alkaline - cyanide free or substantially cyanide-free bath is provided for the electrodeposition of a bright levelled zinc coating; said bath containing a zinc salt, alkali hydroxide and conventional additives and a reaction product of unsaturated nitrogen heterocyclic hydrocarbon compounds containing at least two nitrogen atoms in the ring with epihalogen hydrin or glycerol halogen hydrin.