Phosgene

4 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  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]



From The Collaborative International Dictionary of English v.0.48 [gcide]:

  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]

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  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]

From WordNet (r) 2.0 [wn]:

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