OXIDATION OF ORGANIC-SUBSTANCES WITH COMPOUNDS OF TRIVALENT MANGANESE .17. COULOMETRIC GENERATION OF THE DIPHOSPHATE COMPLEX OF TRIVALENT MANGANESE IN SULFURIC-ACID MEDIUM AND HEXAAQUOMANGANESE(III) IONS IN PERCHLORIC-ACID MEDIUM

被引:6
作者
BAREK, J
BERKA, A
JAKUBEC, K
机构
[1] Department of Analytical Chemistry, Faculty of Natural Sciences, Charles University
关键词
D O I
10.1016/0026-265X(79)90091-2
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Conditions were found for the electrochemical generation of the diphosphate complex of trivalent manganese in a sulfuric acid medium and of hexaaquomanganese(III) ions in perchloric acid medium. Practical application of the studied reagents was verified by coulometric titration of the order of tenths of milligrams of ferrous ions and hydroquinone. Indirect determination of oxalic acid based on its oxidation with excess electrochemically produced trivalent manganese in perchloric acid medium and on coulometric back titration of the unreacted oxidizing agent with ferrous ions was also studied. © 1979.
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页码:454 / 462
页数:9
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