Extraction of Cd(II) and Zn(II) with Dialkylthiophosphinic Acid and Hexadentate Nitrogen-donor Ligand

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著者

    • TAKESHITA Kenji
    • Department of Environmental Chemistry and Engineering, Tokyo Institute of Technology
    • WATANABE Kunio
    • Department of Environmental Chemistry and Engineering, Tokyo Institute of Technology
    • NAKANO Yoshio
    • Department of Environmental Chemistry and Engineering, Tokyo Institute of Technology

抄録

The extraction equilibrium of Cd(II) and Zn(II) with a commercial extractant, Cyanex 301, and an aqueous complexing agent, TPEN [<I>N</I>,<I>N</I>,<I>N</I>′,<I>N</I>′-tetrakis(2-pyridylmethyl)-1,2-ethanediamine] was measured. When TPEN in amounts equimolar with heavy metal (Cd or Zn) was added in the aqueous solution, only the extraction of Zn was depressed. Then, the extraction constant of Cd was little changed and that of Zn was decreased to about 10<SUP>−4</SUP> times. TPEN acts as a strong masking agent for Zn.

収録刊行物

  • Chemistry letters

    Chemistry letters 32(1), 96-97, 2003-01-05

    The Chemical Society of Japan

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各種コード

  • NII論文ID(NAID)
    10012813499
  • NII書誌ID(NCID)
    AA00603318
  • 本文言語コード
    ENG
  • 資料種別
    SHO
  • ISSN
    03667022
  • データ提供元
    CJP書誌  CJP引用  J-STAGE 
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