Ferrous Sulfate
Food Additives 2025-03-02
Multiple Names Duroferon; Feosol; Fer-In-Sol; Iron Monosulfate; Sulfuric Acid, Iron (2+) Salt (1:1); Ferrous Sulphate; Iron (Ii) Sulfate CAS No. 7720-78-7 EC No. 231-753-5 MF No. FeSO4 MW No. 151.9087
Basic Information
| Attribute | Details |
|---|---|
| Chemical Formula | FeSO4 (commonly found as FeSO4·7H2O) |
| CAS Number | 7720-78-7 (for anhydrous); 7782-63-0 (for heptahydrate) |
| Molecular Weight | 151.91 g/mol (anhydrous); 278.01 g/mol (heptahydrate) |
| Appearance | White or light green crystals (anhydrous); Blue-green crystals (heptahydrate) |
Physical and Chemical Properties
| Property | Description |
|---|---|
| Solubility | Soluble in water, insoluble in alcohol |
| Density | 3.65 g/cm³ (anhydrous); 1.898 g/cm³ (heptahydrate) |
| Melting Point | 671 °C (anhydrous, decomposes); 64 °C (heptahydrate, loses water) |
| pH | Aqueous solutions are acidic (pH 3.0-4.0 for heptahydrate) |
Applications
Used as an iron supplement in pharmaceuticals to treat iron deficiency anemia.
Acts as a water treatment agent for removing impurities and improving water quality.
Utilized in agriculture as a soil amendment to provide iron nutrition and improve plant growth.
Employed in industrial processes as a raw material for producing other iron compounds.
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