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CHROMIUM TRIOXIDE AR

Chromium(VI) oxide; Chromic anhydride

COAs

Packings

500 g (00500)

1GBA000450
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Article No. 02821 Grade AR
Purity 99% CAS No. 1333-82-0
Molecular Formula CrO3 Molecular Weight 99.99
H.S. Code 2819.1000 Shelf Life 60 Months

Physical Properties

Physical state at 20 °C Solid Colour Reddish brown
Odour Odorless Melting point/ Freezing point [°C] 196 °C
Density [g/cm3] 2.7 Solubility in water [% weight] 63g/100g water @ 200C
Oxidising properties The substance or mixture is classified as oxidizing with the subcategory 1

Specifications

Appearance Reddish brown flakes Assay (iodometric) Min 99%
Insoluble matter in water Max 0.01% Chloride (Cl) Max 0.005%
Sulphate (SO4) Max 0.02% Total nitrogen (N) Max 0.005%
Lead (Pb) Max 0.004% Iron (Fe) Max 0.01%
Copper (Cu) Max 0.0005% Sodium (Na) Max 0.01%
Potassium (K) Max 0.005% Substance precipitated by NH3 Max 0.02%

Safety Information and Hazard Symbols

Flame Over Circle Skull and Crossbones Corrosion Environment Health Hazard
Symbol: GHS03, GHS05, GHS06, GHS08, GHS09
 Signal Word: Danger
 UN No.: 1463
 IMCO Class No.: 5.1,6.1,8
 Packing Group: II
 Hazardous Statement: H271-H301-H311-H314-H317-H330-H334-H340-H350-H361f-H372-H410
 Precaution Statement: P201-P220-P260-P273-P280-P284
Revision Date: 20-Dec-2013

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