Unusually Slow Extraction Rate and Mechanism of Iron(III) with Trifluoroacetylacetone in Triton X-100 Micellar System(1)Extraction Routes

DOI PDF Web Site Web Site Web Site 被引用文献3件 参考文献41件

書誌事項

タイトル別名
  • Unusually Slow Extraction Rate and Mechanism of Iron(III) with Trifluoroacetylacetone in Triton X-100 Micellar System. Part I. Extraction Routes.
  • Unusually Slow Extraction Rate and Mechanism of Iron 3 with Trifluoroacetylacetone in Triton X 100 Micellar System 1 Extraction Routes

この論文をさがす

抄録

The rate of formation/extraction of iron(III) with trifluoroacetylacetone in Triton X-100 micellar solution at 298 K was measured by stopped-flow spectrophotometry to identify the route and mechanism of the extraction process. The rate was first order with respect to the metal ion and the extractant in the bulk aqueous phase and inverse first order to the hydrogen ion when the formation of extractable tris-complex was small. The rate obtained under such conditions agreed well with that of complex formation in the single aqueous solution; this suggests that the whole reactions is controlled only by the formation of the mono-complex in the bulk aqueous phase. On the other hand, the rate did not show clear dependencies on the ligand and the hydrogen ion, and was slower than the one expected from the complex formation in the aqueous solution when the formation of the extractable tris-complex was dominant. A slow material transport of the tris-complex from the bulk aqueous phase to the micellar pseudophase was estimated.

収録刊行物

  • Analytical Sciences

    Analytical Sciences 16 (8), 811-817, 2000

    社団法人 日本分析化学会

被引用文献 (3)*注記

もっと見る

参考文献 (41)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ