Extraction of europium and cerium into nitrobenzene using synergistic mixture of hydrogen dicarbollylcobaltate and polyethylene glycol PEG 600

被引：0
作者：
E. Makrlík
P. Vaňura
Z. Sedláková
机构：
[1] University of West Bohemia,Faculty of Applied Sciences
[2] Institute of Chemical Technology,undefined
[3] Prague,undefined
[4] Institute of Macromolecular Chemistry,undefined
[5] Academy of Sciences of the Czech Republic,undefined
来源：
Journal of Radioanalytical and Nuclear Chemistry | 2010年 / 283卷
关键词：
Extraction; Europium; Cerium; Nitrobenzene; Dicarbollylcobaltate; Polyethylene glycol PEG 600; Complexes;
D O I：
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学科分类号：
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 600 (L) has been investigated. The equilibrium data have been explained assuming that the complexes HL+, H2L2+ and ML3+ (M3+ = Eu3+, Ce3+; L = PEG 600) are extracted into the organic phase. The values of extraction and stability constants of the species in nitrobenzene saturated with water have been determined. It was found that the stability constants of the EuL3+ and CeL3+ cationic complex species (L = PEG 600) in water-saturated nitrobenzene are the same.
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页码：157 / 161
页数：4
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