Product Details :
Product Name | : FERROUS SULFATE HEPTAHYDRATE |
C.A.S. No. | : 7782-63-0 |
Molecular Formula | : FeSO4.7H2O |
Molecular Weight | : 278.02 g/mol |
SPECIFICATION | IP | BP |
Description | Bluish green crystals or a light green, crystalline powder, odourless. Efforescent in air. On exposure To moist air, the crystals rapidly oxidize and become brown. | Bluish green crystals or a light green, crystalline powder, efforescent in air. |
Solubility | - | Freely soluble in water, very soluble in boiling water, practically insoluble in ethanol (96 %) Ferrous sulfate heptahydrate is oxidized in moist air, becoming brown. |
pH | 3.0-4.0 ( 5 % w/v Solution) | 3.0-4.0 |
Appearance of Solution | The solution is not more opalescent than opalescent Standard. | - |
Identification
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Chloride | NMT 250 ppm | NMT 200 ppm |
Basic sulphate | Producing solution that is not more than turbid. | - |
Arsenic | NMT 2 ppm | - |
Lead | NMT 50 ppm | - |
Mercury | - | - |
Chromium | - | NMT 50 ppm |
Copper | NMT 50 ppm | NMT 50 ppm |
Ferric ions | NMT 0.5 % | NMT 0.3 % |
Manganese | NMT 0.1 % | NMT 0.1 % |
Nickel | - | NMT 50 ppm |
Zinc | NMT 500 ppm | NMT 50 ppm |
Organic volatile impurities | - | - |
Residual Solvents | - | - |
Assay | 98.0 % - 105.0 % | 98.0 % - 105.0 % |
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