chromium trioxide
chemical compound, highly toxic, corrosive, and carcinogenic
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Summary
chromium trioxide is a type of chemical entity[1]. It ranks in the top 5% of type of chemical entity entities by monthly Wikipedia readership (1,372 views/month).[2]
Key Facts
- Canonical SMILES: O=Cr=OCr=O">[3]
- Chemical formula: CrO₃[4]
- Subclass of: acidic oxide[5], chromium oxide[6]
- Has use: indicators and reagents[7]
- Commons category: Chromium trioxide[8]
- Crystal system: orthorhombic crystal system[9]
- Point group: orthorhombic-pyramidal[10]
- Space group: space group 40[11]
- UN classification code: OTC[12]
- Described by source: Armenian Soviet Encyclopedia, vol. 12[13]
- NIOSH Pocket Guide ID: 0138[14]
- Density: 2700.0[15]
- Mass: 99.925[16]
- Melting point: 470.15[17]
- Boiling point: 523.15[18]
- Has part(s) of the class: oxygen[19], chromium[20]
- Standard molar entropy: 266.17[21]
- Standard enthalpy of formation: -292.88[22]
- Safety classification and labelling: NFPA 704: Standard System for the Identification of the Hazards of Materials for Emergency Response[23]
- 2022 Harmonized System Code: 281910[24]
Why It Matters
chromium trioxide has Wikipedia articles in 23 language editions, a strong signal of global cultural recognition.[25] It is known by 35 alternative names across languages and contexts.[26]