Electroplating of copper from an amine based noncyanide bath

With a view to eliminating the use of toxic cyanide for electroplating copp er, a non-cyanide alkaline bath, using triethanolamine as complexant, has b een investigated. Various steps of bath developments are discussed in this paper These include stability and immersion deposition characteristics of s olutions with varying concentrations, Hull cell experiments to arrive at a plating bath composition and determination of current efficiency and deposi t nature under varying operating parameters to optimise the deposition cond itions.