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Ferrous sulfate is a light blue-green monoclinic crystal with a density of 1.898g/cm3 and melted in crystal water at 64 °C. Soluble in water, the aqueous solution is acidic. It gradually weathers in the air and is oxidized to a yellow-brown alkaline iron salt. At 300 °C, all crystal water is lost, and the anhydrous substance is a white powder.
Ferrous sulfate is used medicinally as a local astringent and blood tonic. It is also used as a nutritional supplement such as iron enhancer and fruit and vegetable coloring agent.
| Item | Specifications | Results |
| Appearance | Blue-green monoclinic system crystalline powder or granule | Conform |
| PH | 3.0 – 4.0 | 3.5 |
| Chlorides | ≤0.02% | Conform |
| Ferric Ions | ≤03% | Conform |
| Assay | 98.0% - 105.0% | 98.9% |
| Cas number: | 7782-63-0 |
| Appearance: | Blue-green monoclinic system crystalline powder or granule |
| Purity: | 98.0% - 105.0% |
| Package details: | 25kg/bag |
| Brand: | Fortunachem |
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