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Chromic potassium alum
Chromic Potassium Sulfate
Molecular formula: KCr(SO4)2.12H2O
Properties: violet-red to black crystals. Efflorescent. Insoluble in ethanol, soluble in water. The aqueous solution is violet when cold, green when hot.
| Purity ≥ | 99.5% |
| Water insoluble substances % ≤ | 98 |
| Chlorite(Cl) % ≤ | 0.972-0.978 |
| NH4 % ≤ | 1.482-1.485 |
| Fe % ≤ | 0.05 |
| Al % ≤ | 0.05 |
| Heavy metal (Pb) % ≤ | 0.05 |
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