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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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