キレート抽出系における水素結合供与体の抽出増大効果(関東支部創立40周年記念)

• 勝田 正一

  東京理科大学理学部

書誌事項

タイトル別名

• Extraction enhancement effect of hydrogen-bond donors in chelate extraction systems.
• キレート抽出系における水素結合供与体の抽出増大効果
• キレート チュウシュツケイ ニ オケル スイソ ケツゴウ キョウヨタイ ノ チ

抄録

Effect of phenols as organic hydrogen-bond donors on the chelate extraction of metal ions was thoroughly investigated. A remarkable enhancement of extractability was found in various chelate extraction systems in the presence of phenols. The selectivity of the effect is quite different from the conventional synergistic effect of neutral electron donors such as tributyl phosphate. From spectroscopic measurements, this effect was ascribed to the association of extracted chelates with phenols through hydrogen bonding in the organic phase. Compositions of the association complexes formed, their stability constants (association constants) and thermodynamic parameters were systematically determined from analysis of the extraction equilibria. On the basis of the association constants obtained, factors governing the hydrogen-bond acceptor ability of metal chelates were elucidated. In this study, an important contribution of hydrogen bonding to chelate extraction was clearly demonstrated.

収録刊行物

• 分析化学

  分析化学 44 (12), 1001-1012, 1995

  公益社団法人 日本分析化学会

キーワード

• chelate extraction
• extraction enhancement effect
• hydrogen bonding of phenols to metal chelates
• association constant
• hydrogen-bond acceptor ability of metal chelates

詳細情報

• CRID: 1390282679028126208
• NII論文ID: 110002906886
• NII書誌ID: AN00222633
• DOI: 10.2116/bunsekikagaku.44.1001
• COI: 1:CAS:528:DyaK2MXpvF2nt74%3D
• NDL書誌ID: 3640164
• ISSN: 05251931
• ISSN: http://id.crossref.org/issn/05251931
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I3640164
• Web Site: http://www.jstage.jst.go.jp/article/bunsekikagaku1952/44/12/44_12_1001/_pdf
• Web Site: http://dl.ndl.go.jp/info:ndljp/pid/10893725
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
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  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可