Structure via PubChem · Public domain (PubChem)
chromium trioxide
Sign in to saveAlso known as chromic trioxide, chromic anhydride, anhydride chromique, chromic oxide, monochromium trioxide, red oxide of chromium
chemical compound, highly toxic, corrosive, and carcinogenic
OverviewAI-generated
Chromium trioxide is a chemical compound with the formula CrO₃. Its IUPAC name is trioxochromium. The substance has a mass of 99.925 and a molecular weight of 99.994. It features a canonical SMILES notation of O=[Cr](=O)=O and a topological polar surface area of 51.2. The molecule contains no hydrogen bond donors and three hydrogen bond acceptors, with a net charge of 0.
The compound is identified by the UN classification code OTC and the 2022 Harmonized System Code 281910. It is also listed in the NIOSH Pocket Guide under ID 0138. In scientific literature, chromium trioxide is the subject of 189 PubMed entries. Additionally, the topic is referenced by 396 other encyclopedia articles.
Synthesized by Vinony from 20 facts across 4 sources: Wikidata, PubMed, PubChem, Vinony graph. Generated from structured data (not the Wikipedia text) and checked against those facts — may still contain errors.
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 Ų
- 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
- Has part
- chromium
- 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
via Wikidata · CC0
~4 min read
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.