... . We are manufacturer of copper sulfate,cupric sulfate,bluestone,Copper sulfate pentahydrate,CuSO4, blue vitriol,cuprum sulfuricum copper sulfate pentahydrate and many other chemical ... ,dyestuffs,mordant,pigment,preservative,medicine, pesticides etc. IIII.Specificaiton:Copper Sulfate Feed GradeParametersSpecificationsPurity>98.5%Cu>25%Pb<0.001%As<0 ...