675644

Chromium(VI) oxide

99.99% trace metals basis

• Synonym(s): Chromic anhydride
• Empirical Formula (Hill Notation): CrO₃
• CAS Number: 1333-82-0
• Molecular Weight: 99.99
• EC Number: 215-607-8
• MDL number: MFCD00010952
• UNSPSC Code: 12352303
• PubChem Substance ID: 24885294
• NACRES: NA.23

Properties

• Quality Level: 200
• assay: 99.99% trace metals basis
• form: powder or flakes
• reaction suitability: reagent type: oxidant
• mp: 196 °C (dec.) (lit.)
• application(s): battery manufacturing
• SMILES string: O=[Cr](=O)=O
• InChI: 1S/Cr.3O
• InChI key: WGLPBDUCMAPZCE-UHFFFAOYSA-N

Description

General description

Chromium(VI) oxide (CrO₃) is a hexavalent chromium that is majorly used as an oxidizing agent. It oxidizes the C-H bonds in the aromatic rings to form benzoic acid from alkyl benzene. It can be prepared by adding concentrated sulphuric acid in potassium dichromate.

Safety Information

• pictograms: GHS03,GHS06,GHS08,GHS05,GHS09
• signalword: Danger
• hcodes: H271,H301 + H311,H314,H317,H330,H334,H335,H340,H350,H361f,H372,H410
• pcodes: P210 - P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 2 Inhalation - Acute Tox. 3 Dermal - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1A - Eye Dam. 1 - Muta. 1B - Ox. Sol. 1 - Repr. 2 - Resp. Sens. 1 - Skin Corr. 1A - Skin Sens. 1 - STOT RE 1 Inhalation - STOT SE 3
• target_organs: Respiratory system
• Storage Class: 5.1A - Strongly oxidizing hazardous materials
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges