Solvent extraction of cesium into nitrobenzene by using a synergistic mixture of hydrogen dicarbollylcobaltate and polypropylene glycol PPG 425

被引:12
|
作者
Makrlik, E. [1 ]
Vanura, P. [2 ]
Selucky, P. [3 ]
机构
[1] Univ W Bohemia, Fac Sci Appl, Plzen 30614, Czech Republic
[2] Inst Chem Technol, Dept Analyt Chem, CR-16628 Prague 6, Czech Republic
[3] Nucl Res Inst, CZ-25068 Rez, Czech Republic
关键词
Cesium; Extraction; Dicarbollylcobaltate; Polypropylene glycol PPG 425; Nitrobenzene; STABILITY-CONSTANTS; UNEX PROCESS; MICROAMOUNTS; STRONTIUM; WATER; BARIUM; AMERICIUM; COMPLEXES; EUROPIUM; BIS-1,2-DICARBOLLYLCOBALTATE;
D O I
10.1007/s10967-010-0855-3
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Extraction of microamounts of cesium by a nitrobenzene solution of hydrogen dicarbollylcobaltate (H+B-) in the presence of polypropylene glycol PPG 425 (L) has been investigated. The equilibrium data have been explained assuming that the complex species HL+ and CsL+ (L = PPG 425) are extracted into the organic phase. The values of extraction and stability constants of the cationic complex species in nitrobenzene saturated with water have been determined.
引用
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页码:981 / 985
页数:5
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