Product Description
Zinc Sulphate Heptahydrate CAS number.: 7446-20-0 Molecular: ZnSO4.7H2O M. W.: 287.54 Appearance: White or light green crystal Specification Main content: 97% min Zn: 20-22% min As: 0.001max. Pb: 0.002max Cd: 0.003max. Hg: 0.0001max. Insoluble matter: 0.05max. Use For use of ore depressing and chemical industry or Fertilizers. Packing 25Kg Woven bags lined with plastic bag or big bags