Chromium(VI) oxide, 99.5% (metals basis)

Description

CAS: 1333-82-0 | CrO3 | 99.99 g/mol

Chromium(VI) oxide is widely used in chromium electroplating, and as protective coatings in corrosion/oxidation resistance of metals. It is also employed in CDs and DVDs. It is useful as an oxidant in Jones oxidation in acetic acid or acetone. It is used in the oxidation of primary alcohols into carboxylic acids, and secondary alcohols into ketones. With phosphoric acid, it is used as a stripping agent for anodic coatings of all types and in the production of syntheric rubies.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Specifications

Chemical Identifiers

• CAS: 1333-82-0
• Molecular Formula: CrO3
• Molecular Weight (g/mol): 99.99
• MDL Number: MFCD00010952
• InChI Key: WGLPBDUCMAPZCE-UHFFFAOYSA-N
• Synonym: chromium trioxide, chromium vi oxide, monochromium trioxide, chromtrioxid, chromic trioxide, chromsaeureanhydrid, anhydride chromique, chromium 6+ oxide, chromium vi trioxide, chromium oxide
• PubChem CID: 14915
• ChEBI: CHEBI:48240
• IUPAC Name: trioxochromium
• SMILES: O=[Cr](=O)=O

• Boiling Point: 250°C (decomposition)
• Melting Point: 196°C
• Color: Red
• Physical Form: Crystalline
• Quantity: 500 g
• UN Number: UN1463
• Merck Index: 14,2235
• Solubility Information: Very soluble in water. Soluble in sulfuric,nitric acid,acetic acid,and acetone.
• Formula Weight: 99.99
• Percent Purity: 99.9%
• Sensitivity: Hygroscopic
• Density: 2.7 g/mL
• Assay: (metals basis)
• Chemical Name or Material: Chromium(VI) oxide

Safety and Handling

Hazard Category	H271-H301-H310+H330-H314-H317-H334-H335-H340-H350-H361f-H372
Hazard Statement	GHS H Statement H271-H301-H310-H330-H334-H340-H350-H372-H361-H314-H318-H317 May cause fire or explosion strong oxidizer. Toxic if swallowed. Fatal in contact with skin. Fatal if inhaled. May cause allergy or asthma symptoms or breathing difficulties if inhaled. May cause genetic defects. May cause cancer. Causes damage to organs through prolonged or repeated exposure. Suspected of damaging fertility or the unborn child. Causes severe skin burns and eye damage. Causes serious eye damage. May cause an allergic skin reaction.
Precautionary Statement	P201-P202-P210-P220-P221-P260-P262-P264b-P270-P271-P272-P280g-P281-P283-P284-P285-P302+P350-P304+P340-P305+P351+P338-P306+P360-P310-P330-P331-P333+P313-P353-P363-P370+P378q-P3
DOTInformation	Transport Hazard Class: 5.1; Packing Group: II; Proper Shipping Name: CHROMIUM TRIOXIDE, ANHYDROUS
EINECSNumber	215-607-8
RTECSNumber	GB6650000
TSCA	Yes
Recommended Storage	Ambient temperatures

SDS

RUO – Research Use Only