Solvent Extraction of Several Divalent Metal Ions with Benzoyltrifluoroacetone and 2-Thenoyltrifluoroacetone into Chloroform in the Presence of Tetrabutylammonium Ions.
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- Sekine Tatsuya
- Department of Chemistry, Science University of Tokyo
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- Nguyen Thi Kim Dung
- Department of Chemistry, Science University of Tokyo
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- Noro Junji
- Research Department, Nissan ARC Ltd.
書誌事項
- 公開日
- 1994
- DOI
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- 10.1246/bcsj.67.432
- 公開者
- 公益社団法人 日本化学会
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説明
The solvent extractions of manganese(II), iron(II), cobalt(II), nickel(II), copper(II), zinc(II), and cadmium(II) (M2+) in 0.1 mol dm−3 sodium nitrate solutions with benzoyltrifluoroacetone and 2-thenoyltrifluoroacetone (HA) into chloroform were studied in the absence and presence of tetrabutylammonium ions (tba+). The addition of tba+ enhanced the extraction, except that of copper(II). This enhancement could be explained in terms of the extraction of the ternary complex, MA3−tba+, in addition to the neutral complex, MA2. The data were treated on the basis of the formation equilibrium of the ternary complex from the neutral complex, MA2, with the extracted ion-pairs of the reagents, A−tba+, in the organic phase. It was concluded that the association constants of MnA2, FeA2, CoA2, NiA2, and CdA2 with the ion-pair, A−tba+, are not very much different from each other. However, that of ZnA2 is lower than those of the five divalent metal complexes. This trend is similar to that found among the adduct metal complexes of β-diketonates with trioctylphosphine oxide (TOPO) in synergistic extraction systems.
収録刊行物
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- Bulletin of the Chemical Society of Japan
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Bulletin of the Chemical Society of Japan 67 (2), 432-437, 1994
公益社団法人 日本化学会
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詳細情報 詳細情報について
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- CRID
- 1390282679095474816
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- NII論文ID
- 130004148594
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- ISSN
- 13480634
- 00092673
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
- OpenAIRE
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- 抄録ライセンスフラグ
- 使用不可
