content is empty!
1．Chemical Name: ferrous sulfate
2．Molecular Formula : 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 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 form water and moisture during transport, unloaded with care so as to avoid damage to bags. Furthermore, it should be stored separately from poisonous substances.
Item | GB29211-2012 | |
Content | Ferrous sulfate heptahydrate | Ferrous sulfate anhydrous |
On the basis of（FeSO4·7H2O）99.5-104.5 | On the basis of FeSO4 86.0-89.0 | |
Lead(Pb), mg/Kg ≤ | 2 | 2 |
Arsenic(As), mg/Kg ≤ | 3 | 3 |
Mercury(Hg), mg/Kg ≤ | 1 | 1 |
Acid Insoluble,w% ≤ | ------------ | 0.05 |