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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 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 | 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
  • Phosgene Toxicity - StatPearls - NCBI Bookshelf
    Phosgene is a hydrophobic, gaseous pulmonary irritant ubiquitous in today's industrial landscape as a chemical intermediate Its toxicity ranges from mild irritation to severe pulmonary edema, and no antidote or reversal agent exists at this time
  • Medical Management Guidelines for Phosgene - Centers for Disease . . .
    What is phosgene? At room temperature, phosgene is a colorless gas At high concentrations, it has a suffocating odor; at low concentrations, it smells like green corn or new mown hay
  • 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 - Encyclopedia. com
    phosgene (fŏs´jēn), colorless poison gas [1], first used during World War I [2] by the Germans (1915) When dispersed in air, the gas has the odor of new-mowed hay The gas is highly toxic; when inhaled it reacts with water in the lungs to form hydrochloric acid and carbon monoxide [3]
  • PHOSGENE | CAMEO Chemicals | NOAA
    Phosgene is a lung toxicant that causes damage to the capillaries, bronchioles and alveoli of the lungs, by decomposition to hydrochloric acid There is little immediate irritant effect upon the respiratory tract, and the warning properties of the gas are therefore very slight
  • Phosgene: general information - GOV. UK
    Phosgene is a colourless, reactive, non-flammable gas that is heavier than It has a smell of cut grass or mouldy hay, although not everyone will be able to smell this It is commonly





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