テフロン相分離器を用いる8-キノリノールによるコバルト(II)及びニッケル(II)の連続抽出

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タイトル別名
  • Continuous extraction of nickel(II) in the presence of cobalt(II) with 8-quinolinol by a Teflon phase separator.
  • テフロン相分離器を用いる８‐キノリノールによるコバルト（ＩＩ）及びニッケル（ＩＩ）の連続抽出
  • テフロンソウ ブンリキ オ モチイル 8 キノリノール ニヨル コバルト II

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抄録

A continuous extraction method was applied to separating Co(II) and Ni(II). 8-quinolinol (Ox) was used as extraction reagent because it is a well-known chelate reagent. In the present measurement, the Ox concentration in the extraction solvent was 1.0 × 10-4 mol/l and the pH of the aqueous phase containing the metals was 6.0, which was adjusted with an acetate buffer solution. When the Ox reagent concentration was lower than 5.0×10-4 mol/l, Co(II) and Ni(II) formed CoR2·2H2O and NiR2·HR in the aqueous phase, respectively. Since NiR2·HR can be extracted more easily than CoR2·2H2O, the only NiR2·HR is extracted using the above - mentioned conditions with present continuous extraction method. As a result of extraction, Ni(II) was carried into the distillation flask and separated from Co(II) in a single operation.

収録刊行物

  • 分析化学

    分析化学 46 (4), 297-300, 1997

    公益社団法人 日本分析化学会

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