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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
  • 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 | COCl2 or CCl2O | CID 6371 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety hazards toxicity information, supplier lists, and more
  • How Was Phosgene Gas Used and Deployed in WW1?
    Phosgene was the deadliest chemical weapon of World War I, responsible for an estimated 85% of the roughly 91,000 gas deaths in the conflict First deployed by the German Army in December 1915, it quickly became the gas of choice on both sides because it was far more lethal than chlorine, harder to detect, and killed in a way that overwhelmed battlefield medical care Why Phosgene Replaced
  • What Is Phosgene Gas and How Does It Affect the Body?
    Explore phosgene gas: its characteristics, the physiological effects of exposure, and vital information on safety and emergency response
  • Phosgene - Simple English Wikipedia, the free encyclopedia
    Phosgene is a strong poison As a gas, it is colorless Humans cannot see phosgene gas until it reaches a concentration of 0 4 parts per million, which is four times the safe amount Small amounts of phosgene gas smell like freshly cut hay, grass, or May Blossom [source?] Signs of phosgene exposure sometimes appear slowly [2] People at risk of exposure may wear badges to identify themselves
  • Phosgene | NIOSH | CDC
    Related NIOSH Resources NIOSHTIC-2 search results for phosgene – NIOSHTIC-2 is a searchable database of worker safety and health publications, documents, grant reports, and journal articles supported in whole or in part by NIOSH NIOSH Worker Health Study Summaries – NIOSH conducts research to prevent illnesses and injuries in the workplace
  • 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
  • Understanding Phosgene: Properties, Risks, and Safety Measures
    Phosgene is a potent chemical compound with significant industrial applications but comes with inherent risks to human health and safety Understanding its properties, health risks, and regulatory guidelines is crucial for mitigating these risks and ensuring a safe working environment





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