翻訳と辞書 Words near each other ・ Fatty acid ・ Fatty acid amide ・ Fatty acid amide hydrolase ・ Fatty acid degradation ・ Fatty acid desaturase ・ Fatty acid ester ・ Fatty acid metabolism ・ Fatty acid metabolism regulator protein FadR ・ Fatty acid methyl ester ・ Fatty acid oxidation inhibitors ・ Fatty acid synthase ・ Fatty acid synthesis ・ Fatty acid-binding protein ・ Fatty acyl-CoA esters ・ Fatty Again ・ Fatty alcohol ・ Fatty aldehyde ・ Fatty amine ・ Fatty and George ・ Fatty and Mabel Adrift ・ Fatty and Mabel at the San Diego Exposition ・ Fatty and Minnie He-Haw ・ Fatty and the Broadway Stars ・ Fatty and the Heiress ・ Fatty Arbuckle's ・ Fatty at San Diego ・ Fatty Bear's Birthday Surprise ・ Fatty Boom Boom ・ Fatty Briody ・ Fatty container 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 Fatty alcohol ： ウィキペディア英語版 Fatty alcohol Fatty alcohols (or long-chain alcohols) are usually high-molecular-weight, straight-chain primary alcohols, but can also range from as few as 4-6 carbons to as many as 22-26, derived from natural fats and oils. The precise chain length varies with the source.〔〔http://goldbook.iupac.org/F02330.html〕 Some commercially important fatty alcohols are lauryl, stearyl, and oleyl alcohols. They are colourless oily liquids (for smaller carbon numbers) or waxy solids, although impure samples may appear yellow. Fatty alcohols usually have an even number of carbon atoms and a single alcohol group (-OH) attached to the terminal carbon. Some are unsaturated and some are branched. They are widely used in industry. As with fatty acids, they are often referred to generically by the number of carbon atoms in the molecule, such as "a C12 alcohol", that is an alcohol having 12 carbons, for example dodecanol. ==Production and occurrence== Most fatty alcohols in nature are found as waxes which are esters with fatty acids and fatty alcohols.〔Klaus Noweck, Wolfgang Grafahrend, "Fatty Alcohols" in Ullmann's Encyclopedia of Industrial Chemistry 2006, Wiley-VCH, Weinheim. 〕 They are produced by bacteria, plants and animals for purposes of buoyancy, as source of metabolic water and energy, biosonar lenses (marine mammals) and for thermal insulation in the form of waxes (in plants and insects). Fatty alcohols were unavailable until the early 1900s. They were originally obtained by reduction of wax esters with sodium by the Bouveault–Blanc reduction process. In the 1930s catalytic hydrogenation was commercialized, which allowed the conversion of fatty acid esters, typically tallow, to the alcohols. In the 1940s and 1950s, petrochemicals became an important source of chemicals, and Karl Ziegler had discovered the polymerization of ethylene. These two developments opened the way to synthetic fatty alcohols. 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「Fatty alcohol」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.