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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク arecoline ： ウィキペディア英語版 arecoline Arecoline () is a nicotinic acid-based alkaloid found in the areca nut, the fruit of the areca palm (''Areca catechu''). It is an odourless oily liquid. ==Chemistry== Arecoline is a base, and its conjugate acid has a pKa ~ 6.8.〔''The Merck Index, 10th Ed.'' (1983) p.113, Rahway: Merck & Co.〕 Arecoline is volatile in steam, miscible with most organic solvents and water, but extractable from water by ether in presence of dissolved salts. Being basic, arecoline forms salts with acids. The salts are crystalline, but usually deliquescent: the hydrochloride, arecoline•HCl, forms needles, m.p. 158 °C;〔 the hydrobromide, arecoline•HBr, forms slender prisms, mp. 177-179 °C from hot alcohol; the aurichloride, arecoline•HAuCl4, is an oil, but the platinichloride, arecoline2•H2PtCl6, mp. 176 °C, crystallizes from water in orange-red rhombohedrons. The methiodide forms glancing prisms, mp. 173-174 °C. 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「arecoline」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.