Extraction of europium and cerium into nitrobenzene by using hydrogen dicarbollylcobaltate in the presence of polyethylene glycol PEG 1000

被引：0
|
作者：
E. Makrlík
P. Vaňura
机构：
[1] University of West Bohemia,Faculty of Applied Sciences
[2] Institute of Chemical Technology,Department of Analytical Chemistry, Faculty of Chemical Engineering
[3] Prague,undefined
来源：
Journal of Radioanalytical and Nuclear Chemistry | 2010年 / 283卷
关键词：
Extraction; Europium; Cerium; Hydrogen dicarbollylcobaltate; Polyethylene glycol; Complexes;
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摘要：
Solvent extraction of microamounts of europium and cerium by a nitrobenzene solution of hydrogen dicarbollylcobaltate (H+B−) in the presence of polyethylene glycol PEG 1000 (L) has been investigated. The equilibrium data have been explained assuming that the species H2L2+ and ML3+ (M3+ = Eu3+, Ce3+) are extracted into the organic phase. The values of extraction and stability constants of the complexes in nitrobenzene saturated with water have been determined. It was found that the stability constants of the cationic complex species EuL3+ and CeL3+ in water-saturated nitrobenzene are practically the same.
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页码：773 / 776
页数：3
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