(1) A divalent atomic group formed by removing two hydrogen atoms from propane, -C 3 H 6 - . It does not exist in a free state. (2) One of the ethylenic hydrocarbons. Chemical formula: C 3 H 6 . Also called propene. A colorless gas with a weakly irritating odor. Boiling point: -47.70°C. It is produced in large quantities industrially by low-temperature fractional distillation of petroleum cracking gas or by dehydrogenation of propane. It is used as a fuel as liquefied petroleum gas and as a raw material for the production of polymerized gasoline. It is also used as a raw material for petrochemical products such as isopropyl alcohol, acetone, propylene glycol, allyl alcohol, glycerin, acrolein, acrylonitrile, phenol, and polypropylene. Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information |
(1) プロパンから水素原子2個を除いた2価の原子団 -C3H6- 。遊離状態では存在しない。 (2) エチレン系炭化水素の一つ。化学式 C3H6 。プロペンともいう。弱い刺激性の特臭をもつ無色の気体。沸点-47.70℃。石油分解ガスから低温分留するか,プロパンの脱水素によって工業的に多量に生産される。液化石油ガスとして燃料,重合ガソリン製造原料となる。また石油化学製品,たとえばイソプロピルアルコール,アセトン,プロピレングリコール,アリルアルコール,グリセリン,アクロレイン,アクリロニトリル,フェノール,ポリプロピレンなどの原料となる。
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