SOLVENT-EXTRACTION OF SILVER AND THALLIUM PICRATES WITH POLY-(CROWN ETHER)S AND BIS-(CROWN ETHER)S

被引：36
作者：
MAEDA, T
KIMURA, K
SHONO, T
机构：
[1] Department of Applied Chemistry, Faculty of Engineering, Osaka University, Osaka, 565, Yamada-Kami, Suita
来源：
FRESENIUS ZEITSCHRIFT FUR ANALYTISCHE CHEMIE | 1979年 / 298卷 / 05期
关键词：
Extraktion von Silberpikrat; Thalliumpikrat; Kronenether;
D O I：
10.1007/BF00482015
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Solvent extraction of silver and thallium picrates by new poly- and bis(crown ether)s, which contain benzo-15-crown-5 or benzo-18-crown-6 moieties, was carried out in water-chloroform system. The poly- and bis(crown ether)s showed higher extractability for both metals than the corresponding monocyclic crown ethers. Especially poly- and bis(benzo-15-crown-5) were found to be quite effective extracting agents for Tl+. The extraction equilibrium constants and the complexation constants for the chloroform phase were also estimated. © 1979 Springer-Verlag.
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页码：363 / 366
页数：4
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