| abstract |
An object is to provide practical silver plating technique, high-speed silver plating technique and silver strike plating technique which have, respectively, substantially the same performance as cyanide baths without use of any toxic cyanide. A hydantoin compound of the following general formula is contained as a complex-forming agentn n [wherein R₁, R₃ and R₅ independently represent hydrogen, an alkyl group having 1-5 carbon atoms, an aryl group or an alcohol]. |