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Chromic anhydride

Other names: chromium trioxide or chromium trichloride
CAS number: 1333-82-0
Molecular formula: CrO3
Molecular weight: 99.99
Property: It is of brown red platelet whose smelting point is 197℃ (resolution) and specific gravity 2.70, with strong oxidizing deliquescence. It is well soluble in water. Its friction against organic materials will cause toxic flaming.
Application: Widely used in chrome, wood preservation, medicine, catalysts, pigments, oxidizers, glass coloring, raw materials of catalytic oxidation, and fabrics dyeing.
Packing: in sealed iron pail, 50kg for each.
Cautions:
1. Kept separate with flammable materials (such as fuel, lubricant, alcohol and alkali).
2. Avoid dampness, heat, and shocking during transportation.
Specification:
Production standard: GB 1610-89

Name of index	Index
	Special	Excellent	Grade-one
CrO3 %≥	99.90	99.80	99.70
SO4%≤	0.05	0.05	0.15
Water-insoluble material %≤	0.005	0.008	0.025
Na%≤	0.03	0.05	-
CL%≤	0.005	0.005	-
Fe%≤	0.005	0.005