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Molecular formula: Cr2O3
Properties: green, magnetic, hexagonal crystals. Insoluble in acid and base solution. Stable under exposure to light, air, high temperature, SO2 and H2S.
| Purity ≥ | 98.5% |
| Ni | 0.05 |
| Sulfate(SO4) % ≤ | 0.1 |
| Heavy metal (count by Cu) | 0.1 |
| Alkali metals and Alkaline earth (count by SO4) | 1 |
| Fe % ≤ | 0.05 |
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