Potentiomeric and polarographic studies on complex formation of cadmium(II) ion with ethylenediaminemonoacetic acid.
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概要
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The complex formation equilibria between Cd(II) ion and ethylenediaminemonoacetic acid (EDMA) were examined by potentiometry in a 1.0 mol dm<SUP>−3</SUP> NaClO<SUB>4</SUB> solution at (25.00±0.02) °C, and it was found that neither protonated nor hydrolyzed complex was formed in the range of pH from 2 to 10. The formation constants of Cd(II)–EDMA complexes as well as the protonation constants of EDMA anion determined were as follows: logβ<SUB>101</SUB>=6.86, logβ<SUB>102</SUB>=12.32; logβ<SUB>011</SUB>=9.97, logβ<SUB>021</SUB>=16.71, logβ<SUB>031</SUB>=18.76, where β<I><SUB>pqr</SUB></I>=[M<I><SUB>p</SUB></I>H<I><SUB>q</SUB></I>L<I><SUB>r</SUB></I>]/[M]<I><SUP>p</SUP></I>[H]<I><SUP>q</SUP></I>[L]<I><SUP>r</SUP></I>. The formation constants were also examined polarographically.
- 公益社団法人 日本化学会の論文
著者
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Oyama Noboru
Department Of Applied Chemistry Faculty Of Technology Tokyo University Of Agriculture And Technology
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Ohtaki Hitoshi
Department Of Chemistry Faculty Of Science And Engineering Ritsumeikan University
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Matsuda Hiroaki
Department of Biology, Kyushu University
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Oyama Noboru
Department of Electronic Chemistry, Tokyo Institute of Technology
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Horie Masashi
Department of Electronic Chemistry, Tokyo Institute of Technology
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