1. Chemical Name:  Zinc sulfate

2. Molecular Formula : ZnSO4.H2O  ZnSO4.7H2O

3. Molecular Weight:  179.49(H2O)  287.58(7H2O)

4. CAS:  7446-19-7(H2O)  7446-20-0 (7H2O)

5. Character:  It is colorless or white crystalline powder, odorless. Efflorescence in air. Acid hydrometer is 1.957(25/4℃) to litmus. Melting point is 100℃. It’s soluble in water and glycerol, insoluble in ethanol and light toxicity, lose crystal water in 280℃.

6. Usage:  It is used as food additives, animal feed, printing and dyeing, timber preservative. Used as analytical reagent.

7. Packing:  It is packed with polythene bag as the inner layer, and a compound plastic woven bag as the outer layer. The net weight of each bag is 25kg.

8. Storage and Transport:  It should be stored in a dry and ventilating warehouse; kept away from water and moisture during transport; unloaded with care, so as to avoid damage to bags. Furthermore, it should be stored separately from poisonous substances.