... copper sulphate, copper sulfate penta, cupric sulfate, blue vitriol, copper sulphate pendahydrate Introductionelectroplating chemical, copper sulphate, copper sulfate, copper sulfate penta, cupric sulfate, blue stone, blue vitriol, copper sulphate pendahydratcopper sulphate ... heated to 650 degree heat, can be decomposed into a black copper oxide, sulfur dioxide and oxygen. Purity: CuSO4.5H2O95% ...