phosgene

4 definitions found

phosgene - Collaborative International Dictionary of English v.0.48 :

  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]

phosgene - WordNet (r) 2.1 (2005) :

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