Polarography of Uranyl Complex with <I>p</I>-Aminothiophenoxyacetic Acid in Dimethyl Sulfoxide Solution

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概要

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• The polarography of uranyl ion in dimethyl sulfoxide (DMSO) was investigated in the DMSO concentration range 40–99 vol%. The complex species identified is UO<SUB>2</SUB>(DMSO)<SUB>6</SUB><SUP>2+</SUP>; it is transformed into UO<SUB>2</SUB>(DMSO)<SUB>2</SUB><SUP>+</SUP> and UO<SUB>2</SUB><SUP>+</SUP> after the electrode reduction. In the presence of <I>p</I>-aminothiophenoxyacetic acid, the uranyl ion in the DMSO medium produces a two-step wave at lower pH and higher concentration of DMSO. The limiting current of the wave is controlled partially by the kinetics of the preceding chemical reaction and partially by the diffusion of the complex. The rate constant and diffusion coefficient of the reduction process were determined. At pH around 4, the formation of binuclear uranyl complexes was confirmed.

• 公益社団法人 日本化学会の論文

著者

• LAI Tsai-Teh

  Department of Chemical Engineering, Cheng Kung University

• Yang Jan-Chin

  Department of Chemical Engineering, Cheng Kung University

関連論文

• マンデル酸ウラニル錯体のポーラログラフィー〔英文〕
• Polarography of Uranyl Complex with p-Aminothiophenoxyacetic Acid in Dimethyl Sulfoxide Solution

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