Copper Sulfate Pentahydrate Pharmaceutical Grade USP CAS:7758-99-8 Molecular Formula: CuSO4 . 5H2O Molecular Weight: 249.70 Properties: blue crystal. odorless, soluble in water and alcohol, slightly soluble in ethyl ether and glycerin. Melting point is 115°C. Applications: used in agriculture, pesticides, germicide,and etc. Specification: Elements Standard(%) CuSO4 . 5H2O 98.5-100.5% Zn 0.005 Max Fe 0.005Max Na 0.02 Max Hg 0.00001 Max K 0.01max Ni 0.005max Loss on ignition 33.0-36.5 Packing: 25 KG compound woven bag,without pallets 25mt/20’FCL, on pallets 20mt/20’FCL