翻訳と辞書 Words near each other ・ Phosphorus (horse) ・ Phosphorus (morning star) ・ Phosphorus acid ・ Phosphorus and non-atherosclerotic heart disease ・ Phosphorus bromide ・ Phosphorus chloride ・ Phosphorus cycle ・ Phosphorus deficiency ・ Phosphorus fluoride ・ Phosphorus halide ・ Phosphorus heptabromide ・ Phosphorus iodide ・ Phosphorus mononitride ・ Phosphorus nitride ・ Phosphorus oxide ・ Phosphorus pentabromide ・ Phosphorus pentachloride ・ Phosphorus pentafluoride ・ Phosphorus pentaiodide ・ Phosphorus pentasulfide ・ Phosphorus pentoxide ・ Phosphorus selenide ・ Phosphorus sesquisulfide ・ Phosphorus sulfide ・ Phosphorus tribromide ・ Phosphorus tribromide (data page) ・ Phosphorus trichloride ・ Phosphorus trichloride (data page) ・ Phosphorus trifluoride ・ Phosphorus trifluoride (data page) 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 Phosphorus pentabromide ： ウィキペディア英語版 Phosphorus pentabromide |Section2= |Section3= }} Phosphorus pentabromide is a reactive, yellow solid of formula PBr5, which has the structure PBr4+ Br− in the solid state but in the vapor phase is completely dissociated to PBr3 and Br2. Rapid cooling of this phase to 15 K leads to formation of the ionic species ()+()−. It can be used in organic chemistry to convert carboxylic acids to acyl bromides. It is highly corrosive. It decomposes above 100 °C to give phosphorus tribromide and bromine: :PBr5 → PBr3 + Br2 Reversing this equilibrium to generate PBr5 by addition of Br2 to PBr3 is difficult in practice because the product is susceptible to further addition to yield PBr7. == References == 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「Phosphorus pentabromide」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.