| Item | Standard | Result |
| Mn | ≥31.8% | 31.94% |
| MnSO4·2H2O | ≥98% | 98.25% |
| Fe | ≤0.0035% | 0.0011% |
| Cl- | ≤0.0015% | 0.0003% |
| Pb | ≤15ppm | 2.17ppm |
| As | ≤5ppm | 0.16ppm |
| Cd | ≤15ppm | 0.59ppm |
| Water-Insoluble | ≤0.05% | 0.010% |
| pH | 5.0-7.0 | 6.18 |
| Conclusion | Conform | |
(1) Manganese sulphate is used as a porcelain glaze, as a fertilizer additive and as a catalyst. It is added to soils to promote plant growth, especially of citrus crops.
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