... ,blue stone,blue vitriol,copper sulphate pendahydrate Copper sulphate for acid copperplating,copper sulphate,copper sulfate,copper sulfate penta,cupric sulfate,blue stone,blue vitriol,copper sulphate pendahydrate Grade:electroplating ... (3) Chemical industry: used in the manufacture of copper salt leaching,copper chloride,cuprous chloride and cuprous oxide,etc.(4) Dyestuff industry: used ...