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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 COCl2 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 atoms
  • 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 If you were exposed, get clean and get medical care
  • What Is Phosgene Used For? From Plastics to Pharmaceuticals
    Phosgene (\ (\text {COCl}_2\)) is a chemical compound known for its historical use as a weapon and its modern role in manufacturing At room temperature, it is a colorless, highly toxic gas with an odor often described as similar to freshly cut hay at low concentrations Despite its toxicity, phosgene is a fundamental building block in the chemical industry, enabling the creation of materials
  • Phosgene | Toxic Gas, Chloroformyl, Industrial Uses | Britannica
    phosgene, a colourless, chemically reactive, highly toxic gas having an odour like that of musty hay, used in making organic chemicals, dyestuffs, polycarbonate resins, and isocyanates for making polyurethane resins It first came into prominence during World War I, when it was used, either alone or mixed with chlorine, against troops Inhalation causes severe lung injury, the full effects
  • Phosgene | COCl2 | CID 6371 - PubChem
    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 of pesticides and pharmaceuticals Phosgene can
  • 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) In the past, phosgene was used as a chemical warfare agent
  • Phosgene - Chemical Safety Facts
    Carbon tetrachloride (CTC) is a critical building block chemical used as a raw material or processing agent for the manufacture of other chemicals and products, including next-generation refrigerants for automotive air conditioning systems and foam blowing agents
  • Phosgene Toxicity: Causes, Symptoms And Treatment.
    Phosgene Toxicity has specific symptoms and causes Find out about treatment approaches which help control symptoms and support overall well-being
  • Phosgene: general information - GOV. UK
    What to do if you are exposed to phosgene It is very unlikely that the general population will be exposed to a level of phosgene high enough to cause adverse health effects
  • Phosgene - American Chemistry Council
    The Phosgene Panel of the American Chemistry Council was established in 1972 to support the phosgene industry and to serve the public through the continuous evaluation of and improvements to the production, distribution and use of phosgene





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