1. Chemical Name:  Ferrous sulfate

2. Molecular Formula:  FeSO4·7H2O, FeSO4·H2O

3. Molecular Weight:  278.02 (Heptahydrate)  169.92 (Monohydrate)

4. CAS:   7782-63-0 (Heptahydrate)   13463-43-9 (Monohydrate)

5. Character:  It is a grayish white to buff-colored powder or light blue-green crystals or granules, efflorescent in dry air. In moist air, it oxidizes readily to form a brown-yellow, basic ferric sulfate. It’s soluble in water, insoluble in ethanol.

6. Usage:  It is used as nutrient supplement, fruit and vegetable chromogenic reagent.

7. Packing:  It is packed with plastic bag as 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.