Ferrous Sulphate Hepta Hydrate
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| Tests Specification |
| Description |
Light green crystalline powder or bluish-green crystals |
-sulfate-heptahydrate-sample.jpg) |
| Solubility |
Freely soluble in water, very soluble in boiling water & practically insoluble in alcohole. |
| Identification |
It gives reactions of sulphates & iron and complies with limits of assay |
| PH (5% solution) |
3.0 to 4.0 |
| Chlorides |
NMT 300 w/w |
| Ferric Ions |
NMT 0.5 % w/w |
| Manganese |
NMT 0.1 % |
| Zinc |
NMT 500 ppm |
| Heavy metals |
NMT 50 ppm |
| Assay, (on dried basis) |
98 - 105 % w/w |
| Storage |
In an air tight container |
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