1.Chemical Name: ferrous sulfate

2.MolecularFormula : FeSO4·7H2O, FeSO4·nH2O

3.Molecular Weight: 278.02(Heptahytrate)

4.CAS: 7782-63-0(Heptahydrate), 7720-78-7(Monohydrate)

5.Character:Pale,blue-green crystals or granules that are 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, fruit and vegetable chromogenicreagent.