| PRODUCT NAME | FERROUS SULPHATE HEPTAHYDRATE -IP/BP | |
| Chemical formula | FeSO4.7H2O | |
| Molecular weight | 278.02 | |
| Standard pack size | 25 KG. PAPER BAG / 50 KG. HDPE BAG | |
| Retest period | 5 Years from the date of manufacture | |
| Application |
| Sr. No. | TEST | SPECIFICATION | REFERENCE |
| 1. | Description | Bluish green crystals or light green, crystalline powder; odorless. Efflorescent in air. On exposure to moist air, the crystals rapidly oxidize and become brown. | IP |
| 2. | Solubility | Very Soluble in Boiling water, Freely Soluble in Water, Practically insoluble in ethanol (95%) | IP |
| 3. | Identification | Gives reaction A of ferrous salts and reaction of sulphate | IP |
| 4. | pH | Between 3.0 to 4.0 Determined in 5% w/v Solution | IP |
| 5. | Clarity of solution | The solution is not more opalescent than opalescence standard OS2 | IP |
| 6. | Arsenic | Not more than 2 ppm | IP |
| 7. | Copper | Not more than 50 ppm. | IP |
| 8. | Lead | Not more than 50 ppm. | IP |
| 9. | Zinc | Not more than 500 ppm | IP |
| 10 | Managanese | Not more than 0.1%. | IP |
| 11. | Chloride | Not more than 250 ppm | IP |
| 12. | Assay | NLT 98.0% & NMT 105.0% | IP |
| Sr. No. | TEST | SPECIFICATION | REFERENCE |
| 1. | Description | Light green, crystalline powder or bluish green crystal, efflorescent in air. | BP |
| 2. | Solubility | Freely soluble in water , very soluble in boiling water, practically insoluble in ethanol (96%).It is oxidised in moist air becoming brown. | BP |
| 3. | Identification | (A) It gives reaction of sulphates. (B) It gives reaction (a) of iron (C)It complies with the limits of the assay | BP |
| 5. | pH | Between 3.0-4.0 | BP |
| 4. | Chlorides | Maximum 200 ppm | BP |
| 5. | Chromium | Maximum 50 ppm | BP |
| 6. | Copper | Maximum 50 ppm | BP |
| 7. | Ferric ion | Maximum 0.3%. | BP |
| 8 | Manganese | Maximum 0.1%. | BP |
| 9 | Nickel | Maximum 50 ppm | BP |
| 10 | Zinc | Maximum 50 ppm. | BP |
| 11 | Assay | NLT 98.0% & NMT 105.0%. | BP |