chromium trioxide

Also known as chromic trioxide, chromic anhydride, anhydride chromique, chromic oxide, monochromium trioxide, red oxide of chromium

chemical compound, highly toxic, corrosive, and carcinogenic

In the Vinony graph

Within Vinony's link graph, chromium trioxide is referenced by 396 other articles, and connects out to zirconium, iridium(IV) oxide and chromium carbide.

It is catalogued under topics including Acidic oxides, Chembox having GHS data and Chembox image size set.

Its subject is documented across 36 Wikipedia language editions.

Chemical data

Formula: CrO3
Molecular weight: 99.994 g/mol
IUPAC name: trioxochromium
SMILES: O=[Cr](=O)=O
InChIKey: WGLPBDUCMAPZCE-UHFFFAOYSA-N
Polar surface area: 51.2 Å²
H-bond donors: 0
H-bond acceptors: 3
Formal charge: 0

via PubChem

Research

189 papers

Chromium Trioxide Hole-Selective Heterocontacts for Silicon Solar Cells.ACS applied materials & interfaces · 2018
Subchronic inhalation toxicity of soluble hexavalent chromium trioxide in rats.Archives of toxicology · 2004
The effect of the time of administration of chromium trioxide on the embryotoxic response in hamsters.Teratology · 1979
Batch and column studies for the removal of basic red-46 dye and textile by using magnesium oxide (MgO), strontium titanium trioxide (SrTiO(3)), cobalt- and iron-doped lanthanum chromium trioxide (Co.Fe.LaCrO(3)), and cadmium sulfide (CdS)-doped graphene oxide nanocomposites.Environmental science and pollution research international · 2025
Chromium trioxide oxidation of acetylated 3-amino-3,6-dideoxy-L-hexosides.Canadian journal of biochemistry · 1982

via PubMed

Wikidata facts

Mass: 99.925
Image: Chrom(VI)-oxid.jpg

Show 6 more facts

NIOSH Pocket Guide ID: 0138
UN classification code: OTC
Commons category: Chromium trioxide
chemical formula: CrO₃
canonical SMILES: O=[Cr](=O)=O
2022 Harmonized System Code: 281910

Sources (3)

via Wikidata · CC0

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Encyclopedic overview

Chromium trioxide (also known as chromium(VI) oxide or chromic anhydride) is the inorganic compound with the formula CrO3. It is the acidic anhydride of chromic acid, and is sometimes marketed under the same name.

This compound is a dark-purple solid. Millions of kilograms are produced annually, mainly for electroplating. Chromium trioxide is a powerful oxidiser, a mutagen, and a carcinogen.

Excerpted from Wikipedia’s “chromium trioxide” article, available under the CC BY-SA 4.0 licence.