1)15 years experience on this product. 2)CuSO4.5H20,98%;Cu,25%min. 3)25kg/bag 4)For industrial use 5)MQO:20MT 98% Industrial grade Copper Sulphate Pentahydrate Molecular Formula: CuSO4·5H2OMolecular Weight: 249·68 Properties:blue transparent crystal, relative density: 2·29. Easily soluble in water, aqueous solution is acidic; Not soluble in methanol;glycerol; slightly soluble in ethanol. Use: 1) ...