... PentahydrateGrade: Inustrial grade,agricultural gradeMolecular formula: CuSO4.5H2OCAS NO.: 7758-98-7HS NO.: 2833250000Appearance : Blue crystal , granule or powderUseage: It can ... be used in fodder/ feed , fertilizer , pesticide, electroplating , mining ore, animal medicine field , food ,pigment ... .5-4.5Water Insoluble0.01% Max Copper sulfate 96%min/98%min