- Description:
Product Name: Ferrous Sulphate Food Additive
Other name: Ferrous sulfate heptahydrate; Ferrous sulfate monohydrate.
Molecular formula: FeSO4·7H2O, FeSO4·nH2O,
CAS No.: 7782-63-0(Heptahydrate), 7720-78-7(Monohydrate)
Molecular weight: 278.01(Heptahydrate), 260.02(Monohydrate)
- Characteristics:
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.
- Technical Data:
| Item | Index | |
| Heptahydrate (FeSO4·7H2O) | Monohydrate (FeSO4) | |
| Appearance | Pale,blue-green crystals or granules | Grey white or light-green powder |
| Content, w% ≥ | 99.5-104.5 | 86-89 |
| Lead(Pb),mg/Kg ≤ | 2 | 2 |
| Arsenic (As),mg/Kg ≤ | 3 | 3 |
| Mercury (Hg),mg/Kg ≤ | 1 | 1 |
| Acid Insoluble, w% ≤ | ~ | 0.05 |
| Sieving rate%(0.150mm)≥ | ~ | 95 |
- Application:
It is mainly used in food industry, and used as nutritional supplement(iron fortifier) and fruit and vegetable colorant.
- Storage and Transport:
It should be stored in a dry and ventilative warehouse, kept away from heat and moisture during transportation, unloaded with care so as to avoid damage. Furthermore, it must be stored separately from poisonous substances.