... . We are manufacturer of copper sulfate,cupric sulfate,bluestone,Copper sulfate pentahydrate,CuSO4, blue vitriol,cuprum sulfuricum copper sulfate pentahydrate and many other chemical materials ... (5)Many spefications. III. Cooper sulfate,cupric sulfate,bluestone,Copper sulfate pentahydrate,CuSO4, blue vitriol,cuprum sulfuricum copper sulfate pentahydrate usage:It is mainly used ...