Skip to content
phosgene

File:Anhydrous_Liquid_Phosgene.png · Wikimedia Commons · See Wikimedia Commons

EntityQ189090· pop 60· linked from 690 articles

Also known as carbon oxychloride, carbonyl chloride, carbonyl dichloride, chloroformyl chloride, Carbonic dichloride, COCl2, Dichloroformaldehyde, Carbon dichloride oxide

Phosgene is an organic chemical compound with the formula . It is a toxic, colorless gas; in low concentrations, its musty odor resembles that of freshly cut hay or grass. It can be thought of chemically as the double acyl chloride analog of carbonic acid, or structurally as formaldehyde with the hydrogen atoms replaced by chlorine atoms. In 2013, about 75–80 % of global phosgene was consumed for isocyanates, 18% for polycarbonates and about 5% for other fine chemicals.

AI overview

Phosgene is a toxic, colorless gas that smells like freshly cut hay or grass at low concentrations and is primarily used in industrial chemical manufacturing. Most of the world's phosgene production goes into making isocyanates and polycarbonates, which are important materials for various consumer and industrial products.

AI-generated from the Wikipedia summary — may contain errors.

Chemical data

Formula
CCl2O
Molecular weight
98.91 g/mol
IUPAC name
carbonyl dichloride
SMILES
C(=O)(Cl)Cl
InChIKey
YGYAWVDWMABLBF-UHFFFAOYSA-N
XLogP
1.8
Polar surface area
17.1 Ų
H-bond donors
0
H-bond acceptors
1
Formal charge
0

via PubChem

Wikidata facts

Mass
97.933
Show 14 more facts
NIOSH Pocket Guide ID
0504
Commons category
Phosgene
boiling point
8
density
1.43
immediately dangerous to life or health
8.1
melting point
-127.9
vapor pressure
1.6
ionization energy
11.40
time-weighted average exposure limit
0.4
ceiling exposure limit
0.8
canonical SMILES
C(=O)(Cl)Cl
chemical formula
CCl₂O
MCN code
2812.11.00
electric dipole moment
1.17
Sources (7)

via Wikidata · CC0

~14 min read

Article

17 sections
Contents
  • Structure and basic properties
  • Production
  • Inadvertent generation
  • Atmospheric chemistry
  • Combustion
  • Biologically
  • History
  • Reactions and uses
  • Laboratory uses
  • Alternatives to phosgene
  • Other reactions
  • Chemical warfare
  • Toxicology and safety
  • Accidents
  • See also
  • References
  • External links

Phosgene is an organic chemical compound with the formula . It is a toxic, colorless gas; in low concentrations, its musty odor resembles that of freshly cut hay or grass. It can be thought of chemically as the double acyl chloride analog of carbonic acid, or structurally as formaldehyde with the hydrogen atoms replaced by chlorine atoms. In 2013, about 75–80 % of global phosgene was consumed for isocyanates, 18% for polycarbonates and about 5% for other fine chemicals.

Phosgene is extremely poisonous and was used as a chemical weapon during World War I, where it was responsible for 85,000 deaths. It is a highly potent pulmonary irritant and quickly filled enemy trenches due to it being a heavy gas.

Gallery (13)

Connections

Categories