| PRODUCT NAME | DRIED FERROUS SULPHATE – IP/BP/USP | |
| Chemical formula | FeSO4 | |
| Molecular weight | 151.9 | |
| 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 | Greyish white powder. | IP |
| 2. | Solubility | Dissolves slowly, but almost completely, in freshly boiled and cooled water. | IP |
| 3. | Identification A]copper B] lead C] zinc D] manganese | (A)Not more than 50 ppm. (B) Not more than 50 ppm. (C) Not more than 500 ppm. (D) Not more than 0.1%. | IP |
| 4. | Arsenic | Not more than 3 ppm. | IP |
| 5. | Basic sulphate | Solution is not more than faintly turbid | IP |
| 6. | Ferric ions | Not more than 0.5% | IP |
| 7. | Assay | NLT 86.0% & NMT 90.0%. | IP |
| Sr. No. | TEST | SPECIFICATION | REFERENCE |
| 1. | Description | Greyish white powder. | BP |
| 2. | Solubility | Dissolves slowly, but almost completely, in freshly boiled and cooled water. | BP |
| 3. | Identification | (A) It gives reaction of sulphates. (B) It gives reaction (a) of iron (©It complies with the limits of the assay | BP |
| 5. | Ph | Between 3.0-4.0 | BP |
| 4. | Chlorides | Maximum 300 ppm | BP |
| 5. | Chromium | Maximum 100 ppm | BP |
| 6. | Copper | Maximum 50 ppm | BP |
| Sr. No. | TEST | SPECIFICATION | REFERENCE |
| 1. | Description | Greyish white powder. | USP |
| 2. | Solubility | Dissolves slowly, but almost completely, in freshly boiled and cooled water. | USP |
| 3. | Lead | Not more than 20 ppm. | USP |
| 4. | Arsenic | Not more than 3 ppm. | USP |
| 5. | Cadmium | Maximum 10 ppm | USP |
| 6. | Mercury | Maximum 1 ppm | USP |
| 7. | Fe contain | NLT 31% | USP |