want to buy Copper sulfate/cas no.:7758-98-7 hot sale specifications 1)Purity:94%,96%,98%Min 2)ISO,SGS,BV certified. 3 ... tannage, electrocopper, battery. carving and so on ; used in mining industry and as raw materials of other chemicals. 3.Specifications: Standard ... % passing rate ≥80 mesh ≥95% passing rate 4.Packing Details: Copper Sulfate will be packed in NW.25kgs plastic woven bags within ...