Studies on the Sulfur-containing Chelating Agents. XXXIV. Determination of Stability Constant of Mercury Complex of Monothiodibenzoylmethane and Monothiothenoyltrifluoroacetone by Solvent Extraction Method
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Stability constants and extraction constants of mercury complexes of monothiodibenzoylmethane (SBB) and monothiothenoyltrifluoroacetone (STTA) were determined by the solvent extraction method in the presence of cyanide ion as the auxiliary complexing agent. Chloroform was used as the solvent. These values were compared with those of mercury dithizonate. Stability constant (log K) of mercury complexes decreases in the order, dithizone (42.5) ≈ SBB (41.8) > STTA (33.0), whereas extraction constant (log K') of mercury complexes decreases in the order, dithizone (25.2) > STTA (19.6) ≈ SBB (19.3). As far as the extractability is concerned, SBB and STTA may not be regarded as better reagents than dithizone. However, SBB is regarded as more advantageous reagent than dithizone and STTA, because of its stability in highly diluted solution.
収録刊行物
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- CHEMICAL & PHARMACEUTICAL BULLETIN
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CHEMICAL & PHARMACEUTICAL BULLETIN 20 (9), 1856-1861, 1972
公益社団法人 日本薬学会
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詳細情報 詳細情報について
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- CRID
- 1390282679150444160
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- NII論文ID
- 110003621382
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- NII書誌ID
- AA00602100
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- ISSN
- 13475223
- 00092363
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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
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- 抄録ライセンスフラグ
- 使用不可