Stability of lithium-15-crown-5 complex in nitrobenzene saturated with water

被引：1
作者：
Makrlík, E [1 ]
Vanura, P [1 ]
Danková, M [1 ]
机构：
[1] Prague Inst Chem Technol, Dept Analyt Chem, CR-16628 Prague 6, Czech Republic
来源：
ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS | 1999年 / 212卷
关键词：
lithium; 15-Crown-5; stability constant; nitrobenzene;
D O I：
10.1524/zpch.1999.212.Part_1.107
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
From extraction experiments and gamma-activity measurements, the extraction constant corresponding to the equilibrium Li+(aq) + NaL+(nb) = LiL+(nb) + Na+(aq) taking place in the two-phase water-nitrobenzene system (L = 15-crown-5; aq = aqueous phase, nb = nitrobenzene phase) was evaluated as log K-ex(Li+,NaL+) = -1.0 +/- 0.1. Further, the stability constant of the 15-crown-5-lithium complex in nitrobenzene saturated with water was calculated for a temperature of 25 degrees C: log beta(nb)(LiL+) = 7.0 +/- 0.1.
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页码：107 / 111
页数：5
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