description
| ITEM | INDEX |
| Appearance | Green powder |
| Purity as FeSO4·7H2O, %, minimum | 98 |
| Purity as Iron (Fe), %, minimum | 19.7 |
| Lead (Pb), mg/kg, maximum | 0.002 |
| Arsenic (As), mg/kg, maximum | 0.0005 |
| Cadmium (Cd), mg/kg, maximum | 0.0005 |
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