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phosgene    
n. 光气

光气

phosgene
n 1: a colorless poisonous gas that smells like new-mown hay;
used in chemical warfare

Phosgene \Phos"gene\, a. [Gr. fw^s light the root of
gi`gnesqai to be born: cf. F. phosg[`e]ne.] (Old Chem.)
Producing, or produced by, the action of light; -- used
specifically to designate a gas also called carbonyl
chloride. See {phosgene}, n., and {Carbonyl}.
[1913 Webster PJC]


phosgene \phos"gene\ (f[o^]s"j[=e]n or f[o^]z"j[=e]n), n.
(Chem.)
A reactive chemical substance ({COCl2}), also called
{carbonyl choride}, used in synthesis of numerous substances.
In the First World War it was also used as a poisonous gas in
combat.
[PJC]


Carbonyl \Car"bon*yl\, n. [Carbon -yl.] (Chem.)
The radical ({=CO}), occuring, always combined, in many
compounds, as the aldehydes, the ketones, urea, carbonyl
chloride, etc.
[1913 Webster]

Note: Though denoted by a formula identical with that of
carbon monoxide, it is chemically distinct, as carbon
seems to be divalent in carbon monoxide, but
tetravalent in carbonyl compounds.
[1913 Webster]

{Carbonyl chloride} (Chem.), a colorless gas, {COCl2}, of
offensive odor, and easily condensable to liquid. It is
formed from chlorine and carbon monoxide, under the
influence of light, and hence has been called {phosgene},
or {phosgene gas}; -- called also {carbon oxychloride}. It
is used in chemical synthesis, and was also used as a
poison gas in World War I.
[1913 Webster PJC]


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  • Phosgene - Wikipedia
    Phosgene is an organic chemical compound with the formula COCl 2 It is a toxic, colorless gas; in low concentrations, its musty odor resembles that of freshly cut hay or grass [ 7 ] 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
  • Phosgene | Chemical Emergencies - CDC
    Phosgene is a toxic gas or liquid that can cause damage to the skin, eyes, nose, throat, and lungs Signs and symptoms depend on how the amount of phosgene, how the person was exposed, and for how long
  • Phosgene | COCl2 | CID 6371 - PubChem
    Phosgene is used as a chemical intermediate; in the past, it was used as a chemical warfare agent Phosgene is extremely toxic by acute (short-term) inhalation exposure Severe respiratory effects, including pulmonary edema, pulmonary emphysema, and death have been reported in humans
  • Phosgene | NIOSH | CDC
    Phosgene (COCl₂) is a colorless gas with a suffocating odor like musty hay Exposure to phosgene may cause irritation to the eyes, dry burning throat, vomiting, cough, foamy sputum, breathing difficulty, and chest pain; and when liquid: frostbite Workers may be harmed from exposure to phosgene
  • Phosgene - WikEM
    Phosgene (carbonyl chloride), chemical formula COCl2, is a colorless gas (at low temperatures, can also exist as a liquid) Classically described as having odor of freshly cut hay Used as a chemical weapon, and accounted for 80% of deaths from poison gas in WWI [1]
  • Phosgene | Toxic Substances | Toxic Substance Portal | ATSDR
    Phosgene is a colorless nonflammable gas that has the odor of freshly cut hay It is a manufactured chemical, but small amounts occur naturally from the break down of chlorinated compounds Phosgene is used in the manufacture of other chemicals such as dyestuffs, isocyanates, polycarbonates and acid chlorides; it is also used in the manufacture
  • Phosgene - Chemical Safety Facts
    Phosgene is a building block chemical in the manufacture of diisocyanate chemicals used to make a range of polyurethane products used in everyday life, including flexible foam in upholstered furniture, rigid foam as insulation in walls and roofs, and thermoplastic polyurethane used in medical devices and footwear
  • Phosgene - U. S. Environmental Protection Agency
    Phosgene is a widely used chemical intermediate, primarily manufactured in the preparation of many organic chemicals Phosgene is used for the synthesis of isocyanate-based polymers, carbonic acid esters, and acid chlorides It is also used in the manufacture of dyestuffs, some insecticides, and pharmaceuticals and in metallurgy (1,6)
  • Phosgene | ToxFAQs™ | ATSDR - Centers for Disease Control and Prevention
    Phosgene is a colorless nonflammable gas that has the odor of freshly cut hay It is a manufactured chemical, but small amounts occur naturally from the break down of chlorinated compounds
  • 3. 0 Properties of Phosgene - American Chemistry
    Phosgene is a widely used chemical intermediate, primarily manufactured for the synthesis of isocyanate-based polymers, carbonic acid esters and acid chlorides It is also used in the manufacture of dyestuffs, some insecticides and pharmaceuticals and in metallurgy





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