Extraction of zinc from water into nitrobenzene using strontium dicarbollylcobaltate in the presence of valinomycin

被引：0
|
作者：
Makrlik, Emanuel
Vanura, Petr
机构：
[1] Univ W Bohemia, Fac Sci Appl, Plzen 30614, Czech Republic
[2] Prague Inst Chem Technol, Prague 16628 6, Czech Republic
来源：
ACTA CHIMICA SLOVENICA | 2007年 / 54卷 / 02期
关键词：
zinc; valinomycin; water-nitrobenzene system; extraction and stability constants;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
From extraction experiments and gamma-activity measurements, the extraction constant corresponding to the equilibrium Zn2+(aq) + SrL2+(nb) double left right arrow ZnL2+(nb) + Sr2+(aq) taking place in the two-phase water-nitrobenzene system (L = valinomycin; aq = aqueous phase, nb = nitrobenzene phase) was evaluated as log K ex (Zn2+, SrL2+) = - 0.1. Furthermore, the stability constant of the valinomycin-zinc complex in nitrobenzene saturated water was calculated for a temperature of 25 degrees C: log beta(nb) (ZnL2+) = 6.2.
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页码：375 / 377
页数：3
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