Acetylenic hydrocarbons - Hydrocarbons of acetylene series

Japanese: アセチレン系炭化水素 - アセチレンけいたんかすいそ(英語表記)hydro-carbons of acetylene series
Acetylenic hydrocarbons - Hydrocarbons of acetylene series
Also known as alkynes, they have the general formula C n H 2 n -2 (where n ≧2). They are homologues of acetylene and are a general term for unsaturated chain hydrocarbons with one triple bond. n = 2 is acetylene, n = 3 is methylacetylene, and n = 4 is 1-butyne and 2-butyne. They are highly unsaturated and therefore highly reactive. Up to C 12 H 22 , they are gases or liquids that have a characteristic odor and burn with a bright flame. Mixtures with air or oxygen are explosive. They more easily undergo reactions that are exhibited by ethylenic hydrocarbons.

Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information

Japanese:
アルキンともいわれ,CnH2n-2 (ただし n≧2 ) の一般式をもつ。アセチレンの同族体で,三重結合を1つもつ不飽和鎖式炭化水素の総称である。 n=2 はアセチレン,n=3 はメチルアセチレン,n=4 は1-ブチンおよび2-ブチンである。不飽和性が高いので,反応性に富んでいる。 C12H22 までは気体ないし液体で,特異臭を有し,光のある炎をあげて燃焼する。空気または酸素との混合物は爆発性がある。エチレン系炭化水素の呈する諸反応をより容易に行う。

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