翻訳と辞書 Words near each other ・ Xylecata rattrayi ・ Xylecata ugandicola ・ Xylecata uniformis ・ Xylecata xanthura ・ Xylella fastidiosa ・ Xylem ・ Xylem Inc. ・ Xylem Tube EP ・ Xylena ・ Xylena exsoleta ・ Xylena tatajiana ・ Xylena vetusta ・ Xylene ・ Xylene cyanol ・ Xylenini ・ Xylenol ・ Xylenol orange ・ Xylergates ・ Xylergates capixaba ・ Xylergates elaineae ・ Xylergates lacteus ・ Xylergates picturatus ・ Xylergates pulcher ・ Xylergatoides ・ Xylesthia ・ Xylesthia pruniramiella ・ Xyletininae ・ Xyletinus ・ Xyletinus longitarsis ・ Xyletobius Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Xylenol ： ウィキペディア英語版 Xylenol Xylenol are organic compounds with the formula (CH3)2C6H3OH. They are volatile colorless solids or oily liquids. They are derivatives of phenol with two methyl groups and a hydroxyl group. Six isomers exist, of which 2,6-xylenol with both methyl group in an ortho position with respect to the hydroxyl group is the most important. The name ''xylenol'' is a portmanteau of the words xylene and phenol. 2,4-dimethylphenol together with other xylenols and many other compounds are traditionally extracted from coal tar, the volatile materials obtained in the production of coke from coal. These residue contains a few percent by weight of xylenols as well as cresols and phenol. The main xylenols in such tar are the 3,5-, 2,4, and 2,3- isomers. 2,6-Xylenol is produced by methylation of phenol using methanol in the presence of metal oxide catalysts:〔Helmut Fiegein "Cresols and Xylenols" in ''Ullmann's Encyclopedia of Industrial Chemistry'', 2007; Wiley-VCH, Weinheim. 〕 :C6H5OH + 2 CH3OH → (CH3)2C6H3OH + 2 H2O ==Properties== The physical properties of the six isomeric xylenols are similar. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Xylenol」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.