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

页码：592 / 594

页数：3

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