Synthesis of Chelating Agents. VIII. Synthesis and Acid Dissociation of 3,3-Dimethylbutane-1,2-dinitrilo-<I>N</I>,<I>N</I>,<I>N</I>′,<I>N</I>′-tetraacetic Acid
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概要
- 論文の詳細を見る
3,3-Dimethylbutane-1,2-dinitrilo-<I>N</I>,<I>N</I>,<I>N</I>′,<I>N</I>′-tetraacetic acid (BEDTA) has been synthesized by the carboxymethylation of 3,3-dimethylbutane-1,2-diamine (BEDA). The stepwise acid dissociation constants determined by the potentiometric method were found to be p<I>K</I><SUB><I>a</I>1</SUB>=6.26 and p<I>K</I><SUB><I>a</I>2</SUB>=9.78 for BEDA and p<I>K</I><SUB><I>a</I>1</SUB>=2.1, p<I>K</I><SUB><I>a</I>2</SUB>=3.62, p<I>K</I><SUB><I>a</I>3</SUB>=5.29, and p<I>K</I><SUB><I>a</I>4</SUB>=11.6 for BEDTA at 25°C and an ionic strength of 0.1 (KCl). The values were discussed in relation to molecular structures.
- 公益社団法人 日本化学会の論文
著者
-
Ueno Keihei
Department Of Organic Synthesis Faculty Of Engineering Kyushu University
-
Kobayashi Hiroshi
Department Of Applied Physics School Of Science And Engineering Waseda University
-
Yanagihara Yuzo
Department of Organic Synthesis, Faculty of Engineering, Kyushu University
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Yano Tairoku
Department of Organic Synthesis, Faculty of Engineering, Kyushu University
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