ketene
noun Etymology: International Scientific Vocabulary Date: 1907 a colorless poisonous gas C2H2O of penetrating odor used especially as an acetylating agent; also any of various derivatives of this compound

New Collegiate Dictionary. 2001.

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  • Ketene — Allgemeine Struktur Struktur der Stammverbindung Keten Ketene (Betonung auf der zweiten Silbe: Ketene) sind eine Gruppe organischer Verbindungen mit der allgemeinen Formel RR C=C=O …   Deutsch Wikipedia

  • ketene — [kē′tēn΄] n. [ KET(O) + ENE] 1. a colorless, toxic gas, H2C∶CO, with a penetrating odor, made by passing acetone or acetic acid through hot metal tubes: used esp. as an acetylating agent 2. any of a series of related organic compounds containing… …   English World dictionary

  • ketene — /kee teen/, n. Chem. a colorless, poisonous gas, C2H2O, irritating to the lungs, prepared from acetone or acetic acid by pyrolysis: used chiefly in the manufacture of certain commercial chemicals, as acetic anhydride and aspirin. [1905 10; KET +… …   Universalium

  • Ketene — A ketene is an organic compound of the form R2C=C=O. Hermann Staudinger pioneered the research of ketenes. [cite journal title = Ketene, eine neue Körperklasse author = Hermann Staudinger journal = Berichte der deutschen chemischen Gesellschaft… …   Wikipedia

  • ketene — ketenas statusas T sritis chemija formulė H₂C=C=O atitikmenys: angl. keten; ketene rus. кетен …   Chemijos terminų aiškinamasis žodynas

  • ketene — ketenas statusas T sritis chemija formulė R₂C=C=O atitikmenys: angl. keten; ketene rus. кетен …   Chemijos terminų aiškinamasis žodynas

  • ketene — noun any of a class of unsaturated ketones, having a general formula RR …   Wiktionary

  • ketene — 1. CH2=C=O; a very reactive acetylating agent, used in chemical syntheses. 2. Any substituted k.. * * * ke·tene kē .tēn n a colorless poisonous gas C2H2O of penetrating odor used esp. as an acetylating agent also any of various derivatives of… …   Medical dictionary

  • ketene — n. colorless poisonous gas used mainly in the manufacture of cellulose acetate and aspirin (Chemistry) …   English contemporary dictionary

  • ketene — ke·tene …   English syllables

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