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| Items | Guaranteed Specification | Typical Analysis Result |
| FeSO4. 7H2O | 98% Min | 99% |
| Fe | 19.7% Min | 19.9% |
| Pb | 20 ppm Max | 11 ppm |
| As | 2 ppm Max | 1 ppm |
| Cd | 5 ppm Max | 3 ppm |
| Size | Through 40 mesh sieve | Through 40 mesh sieve |