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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 Nitrilotriacetic acid ： ウィキペディア英語版 Nitrilotriacetic acid |Section2= |Section3= |Section4= |Section5= }} Nitrilotriacetic acid (NTA) is the aminopolycarboxylic acid with the formula N(CH2CO2H)3. It is a colourless solid that is used as a chelating agent, which forms coordination compounds with metal ions (chelates) such as Ca2+, Cu2+, and Fe3+.〔(NITRILOTRIACETIC ACID AND ITS SALTS ), International Agency for Research on Cancer (IARC)〕 ==Production and use== Nitrilotriacetic acid is commercially available as the free acid and as the sodium salt. It is produced from ammonia, formaldehyde, and sodium cyanide or hydrogen cyanide. Worldwide capacity is estimated at 100 thousand tonnes per year. The acid is also cogenerated as an impurity in the synthesis of EDTA, arising from reactions of the ammonia coproduct.〔Hart, J. Roger (2005) "Ethylenediaminetetraacetic Acid and Related Chelating Agents" in ''Ullmann's Encyclopedia of Industrial Chemistry'', Wiley-VCH, Weinheim. 〕 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「Nitrilotriacetic acid」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.