Phosgene: Difference between revisions
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'''Phosgene''', the [[acid chloride]] of [[carbonic acid]], is an industrial chemical that was used as a [[chemical weapon]] during [[World War I]]. It is a [[choking gas]] that reacts with water to produce carbon dioxide and hydrogen chloride gas, which is corrosive. Exposure can lead to [[pulmonary edema]] and [[chemical pneumonitis]]. Phosgene has many different names, including carbon oxychloride, chloroformyl chloride, carbonyl chloride, carbonic dichloride, CG (military) and carbonyl dichloride. | |||
== Decomposition == | |||
Like its parent compound carbonic acid, phosgene is very reactive and decomposes in the presence of moisture to form [[carbon dioxide]] (CO2) and [[hydrochloric acid]] (HCl). The oxygen atom of water molecules act as [[nucleophile|nucleophiles]] and attack the central carbon atom. | |||
{{Image|Decomposition of phosgene to hydrochloric acid and carbon dioxide.jpg|left|600px|Phosgene decomposes in the presence of water to form carbon dioxide and hydrogen chloride gas.}} | |||
{{Chem infobox | {{Chem infobox | ||
|align=right | |align=right | ||
|image= | |image={{Image|Phosgene chemical structure.jpg|center|125px|Phosgene, a chemical weapon and industrial chemical}} | ||
|width=125px | |width=125px | ||
|molname=phosgene | |molname=phosgene | ||
|synonyms= | |synonyms= see below | ||
|molformula= C<sub> | |molformula= C<sub></sub>Cl<sub>2</sub>O (COCl<sub>2</sub>) | ||
|molmass= | |molmass= 98.92 | ||
|uses=chemical weapon | |uses=chemical weapon | ||
|properties=corrosive | |properties=corrosive | ||
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|casnumber= 75-44-5 | |casnumber= 75-44-5 | ||
}} | }} | ||
Latest revision as of 12:46, 11 June 2009
Phosgene, the acid chloride of carbonic acid, is an industrial chemical that was used as a chemical weapon during World War I. It is a choking gas that reacts with water to produce carbon dioxide and hydrogen chloride gas, which is corrosive. Exposure can lead to pulmonary edema and chemical pneumonitis. Phosgene has many different names, including carbon oxychloride, chloroformyl chloride, carbonyl chloride, carbonic dichloride, CG (military) and carbonyl dichloride.
Decomposition
Like its parent compound carbonic acid, phosgene is very reactive and decomposes in the presence of moisture to form carbon dioxide (CO2) and hydrochloric acid (HCl). The oxygen atom of water molecules act as nucleophiles and attack the central carbon atom.
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| phosgene | |||||||
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| Uses: | chemical weapon | ||||||
| Properties: | corrosive | ||||||
| Hazards: | corrosive, produces chlorine gas | ||||||
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