Extraction of lead with nitrobenzene solution of strontium dicarbollylcobaltate in the presence of 18-crown-6

被引：0
|
作者：
Makrlík, E [1 ]
Vanura, P
Becková, V
机构：
[1] Charles Univ, Fac Educ, CR-11636 Prague 1, Czech Republic
[2] Prague Inst Chem Technol, CR-16628 Prague, Czech Republic
[3] Natl Radiat Protect Inst, Prague, Czech Republic
来源：
JOURNAL FUR PRAKTISCHE CHEMIE-CHEMIKER-ZEITUNG | 1999年 / 341卷 / 06期
关键词：
cobalt; crown compound; lead; extraction; water-nitrobenzene system;
D O I：
暂无
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
From extraction experiments with Sr-85 as a tracer, the extraction constant corresponding to the equilibrium Pb2+ (aq)+ SrL2+(nb) reversible arrow PbL2+ (nb) + Sr2+(aq) taking place in the two - phase water - nitrobenzene system (L = 18-crown-6; aq = aqueous phase, nb = nitrobenzene phase) was evaluated as log K-ex(Pb2+, SrL2+) = 1.5. Further, the stability constant of the PbL2+ complex in nitrobenzene saturated with water was calculated: log beta(nb)(PbL2+) = 12.9.
引用
收藏
页码：592 / 594
页数：3
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