ACÉTYLÈNE — L’acétylène, de formule brute C2H2, est le premier terme des alcynes ou hydrocarbures acétyléniques de formule générale Cn H2n 2. Ces derniers sont caractérisés par la présence d’une triple liaison (face=F0019 漣 C 令 C 漣) dans leur molécule.… … Encyclopédie Universelle
Acetylene — Acétylène Acétylène Structure tridimensionnelle de l acétylène Général Nom IUPAC éthyne … Wikipédia en Français
Acétylène — Structure tridimensionnelle de l acétylène Général Nom IUPAC éthyne … Wikipédia en Français
acetylene — (n.) gaseous hydrocarbon, 1864, from Fr. acétylène, coined by French chemist Marcelin Pierre Eugène Berthelot (1823 1907) from chemical ending ENE (Cf. ene) + acetyl, which was coined from acetic in 1839 by German chemist Justus von Liebig; see… … Etymology dictionary
Acetylene — A*cet y*lene, n. (Chem.) A gaseous compound of carbon and hydrogen, in the proportion of two atoms of the former to two of the latter. It is a colorless gas, with a peculiar, unpleasant odor, and is produced for use as an illuminating gas in a… … The Collaborative International Dictionary of English
Acetylene — Plural, frühere Bezeichnung für die Alkine … Universal-Lexikon
acetylene — ► NOUN ▪ a gas which burns with a bright flame, used in welding. ORIGIN from ACETIC ACID(Cf. ↑acetic acid) … English terms dictionary
acetylene — [ə set′ l ēn΄] n. [ ACETYL + ENE] a colorless, poisonous, highly flammable gaseous hydrocarbon, HC⋮CH, produced by the reaction of water and calcium carbide: used in organic compound synthesis, for lighting, and with oxygen in welding: the… … English World dictionary
Acetylene — HCCH redirects here. For other uses, see HCCH (disambiguation). Acetylene … Wikipedia
acetylene — acetylenic /euh set l en ik/, adj. /euh set l een , in/, n. Chem. a colorless gas, C2H2, having an etherlike odor, produced usually by the action of water on calcium carbide or by pyrolysis of natural gas: used esp. in metal cutting and welding,… … Universalium
