Chromium(VI) oxide

CAS 1333-82-0CrO3Chemical Synthesis

Chromium(VI) oxide (CAS: 1333-82-0; Formula: CrO3; Molar Mass: 99.99 g/mol), also known as chromic anhydride, is a highly effective oxidizing agent. This dark red crystalline powder finds application in chemical synthesis and is utilized as a dopant in materials science. Its potent oxidative properties make it valuable in various industrial processes, including surface treatment and catalysis. Tech Serve Solutions supplies Chromium(VI) oxide with an assay of ≥98.0%.

IUPAC: Chromic anhydride

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Chromium(VI) oxide (CrO3) — chemical structure, CAS 1333-82-0; Chemistry, fine chemical supplied by Tech Serve Solutions

Alternative EnergyChemical SynthesisChromatesChromiumDopantsMaterials ScienceMetal and Ceramic ScienceOxidesOxidizing AgentsPhosphor Materials

01 /Applications

Chemical Synthesis

Chromium(VI) oxide serves as a powerful oxidizing agent in organic synthesis. It is employed in the oxidation of alcohols to aldehydes and ketones, and for other functional group transformations. Its reactivity allows for precise control in multi-step synthetic pathways.

Materials Science and Dopants

As a dopant, Chromium(VI) oxide can be incorporated into various materials to modify their electronic and optical properties. It is used in the development of specialized materials, including phosphors and semiconductors. Its inclusion can enhance performance in electronic and energy applications.

Surface Treatment and Metallurgy

This compound is utilized in metal finishing processes, particularly in chromate conversion coatings for metals like aluminum and zinc. These coatings provide corrosion resistance and improve paint adhesion. It is also used in anodizing processes.

Catalysis

Chromium(VI) oxide can act as a catalyst or catalyst precursor in certain industrial reactions. It is employed in processes such as the oxidation of hydrocarbons. Its catalytic activity is significant in specific chemical transformations.

02 /Properties

Molecular weight	99.99
Empirical formula	CrO3
Assay	≥98.0%
Form	powder
Melting point	196 °C (dec.)(lit.)

03 /Safety & handling

GHS hazard pictogram: Oxidising (GHS03) — Oxidising

GHS hazard pictogram: Corrosive (GHS05) — Corrosive

GHS hazard pictogram: Toxic (GHS06) — Toxic

GHS hazard pictogram: Health hazard (GHS08) — Health hazard

GHS hazard pictogram: Environmental hazard (GHS09) — Environmental hazard

Danger

Hazard statements

H271May cause fire or explosion; strong oxidiser
H301Toxic if swallowed
H314Causes severe skin burns and eye damage
H317May cause an allergic skin reaction
H330Fatal if inhaled
H334May cause allergy or asthma symptoms if inhaled
H340May cause genetic defects
H350May cause cancer
H361F
H372Causes damage to organs through prolonged exposure
H410Very toxic to aquatic life with long-lasting effects

Precautionary statements

P201Obtain special instructions before use
P220Keep away from clothing and combustible materials
P260Do not breathe dust, fume, gas, mist, vapours or spray
P273Avoid release to the environment
P280Wear protective gloves, clothing and eye/face protection
P284Wear respiratory protection

Protective equipment	Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges
Transport (UN / ADR)	UN 1463 5.1/PG 2
Water hazard class (WGK, DE)	3
Hazard codes (EU)	O,T+,N
Risk statements (R)	45-46-9-24/25-26-35-42/43-48/23-50/53-62
Safety statements (S)	53-45-60-61

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry

CAS number

1333-82-0

MDL number

MFCD00010952

PubChem substance

24885294

05 /Quality & supply

Documentation

Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

06 /Frequently asked questions

What is Chromium(VI) oxide used for?

Chromium(VI) oxide (CrO3) is primarily used as a strong oxidizing agent in chemical synthesis, as a dopant in materials science, in surface treatment for metals, and as a catalyst in various industrial processes.

What are the CAS number and chemical formula for Chromium(VI) oxide?

The CAS number for Chromium(VI) oxide is 1333-82-0, and its chemical formula is CrO3.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies Chromium(VI) oxide with an assay of ≥98.0%. This product is not represented as USP, BP, EP, or any other pharmacopoeia grade.

How should Chromium(VI) oxide be handled safely?

Chromium(VI) oxide is a dangerous substance. It is a strong oxidizer, corrosive, and toxic. Handle with appropriate personal protective equipment, including eyeshields, gloves, and a full-face respirator. Avoid contact with skin, eyes, and inhalation. Store away from combustible materials and reducing agents.

How is Chromium(VI) oxide packed and exported?

Chromium(VI) oxide is packed according to UN 1463 regulations for transport as a hazardous material. Tech Serve Solutions can export this chemical globally, adhering to all relevant shipping and customs regulations for dangerous goods.

How can I request a quote or sample for Chromium(VI) oxide?

To request a quote or a sample of Chromium(VI) oxide, please contact the Tech Serve Solutions sales team via our website or direct inquiry channels. Provide your specific requirements for prompt assistance.

Is Chromium(VI) oxide a controlled substance?

While not explicitly listed as a controlled substance in all jurisdictions, Chromium(VI) compounds are subject to stringent regulations due to their toxicity and environmental hazards. Users should be aware of and comply with all local and international regulations regarding their handling and use.