A volatile oil contained in coal gas as a by-product during coal carbonization. It is a thin yellow oil that is lighter than water and is mainly composed of benzene-based aromatic hydrocarbons (alkylbenzenes) such as benzene, toluene, and xylene. It can also be used as fuel, but the individual components are usually separated by fractional distillation and purification. Source : Heibonsha Encyclopedia About MyPedia Information |
石炭乾留の際,石炭ガス中に副産物として含まれる揮発性の油。水より軽く,さらさらした黄色の油で,主成分はベンゼン,トルエン,キシレンなどのベンゼン系芳香族炭化水素(アルキルベンゼン類)である。燃料ともするが,ふつうは分留精製して各成分を分離する。
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