... :Copper sulphate is also called chalcanthite with the molecular formula of CuSO4.5H2O. Varieties: Feed grade, Industrial grade, Agricultural grade. ... 93 , and the feed-grade standard is in conformity with HG2932-1999Characteristic:Pellet copper sulphate:Bright blue color, even ... dry and not agglomeration, for long-term storage.Powder copper sulphate:Even mixing, fine mobility, easy to assimilate. ...