OXIDATION OF METAL-IONS DURING SOLVENT-EXTRACTION OF MANGANESE(II) WITH BENZOYLACETONE AND DIBENZOYLMETHANE

被引：7

作者：

SEKINE, T ^{[1
]}

ISHII, T ^{[1
]}

FUKAYA, T ^{[1
]}

机构：

[1] SCI UNIV TOKYO,DEPT CHEM,SHINJUKU KU,TOKYO 162,JAPAN

来源：

ANALYTICAL SCIENCES | 1990年 / 6卷 / 01期

关键词：

Manganese(II); manganese(III); oxidation; oxidation rate; solvent extraction; β-diketones;

D O I：

10.2116/analsci.6.115

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The oxidation of manganese(II) in a benzoylacetonate and a dibenzoylmethanate complex in water-saturated organic solvents by dissolved atmospheric oxygen was measured. The rate of oxidation in carbon tetrachloride and toluene was higher: dibenzoylmethane < acetylacetone < benzoylacetone. When the ligand was the same, it was higher in toluene than in carbon tetrachloride, but was very low in 4-methyl-2-pentanone. Such an oxidation also occurred in the organic phase of solvent extraction systems with these β-diketones. For this reason the extraction was enhanced very much when the two phases were agitated for a long time. © 1990, The Japan Society for Analytical Chemistry. All rights reserved.

引用

页码：115 / 119

页数：5

共 9 条

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