Extraction of sodium picrate into nitrobenzene in the presence of dicyclohexyl-18-crown-6

被引：0

作者：

E. Makrlík

P. Vaňura

机构：

[1] Charles University,Faculty of Education

[2] Prague Institute of Chemical Technology,undefined

来源：

Journal of Radioanalytical and Nuclear Chemistry | 1997年 / 223卷

关键词：

Sodium; Physical Chemistry; Inorganic Chemistry; Stability Constant; Nitrobenzene;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

From extraction experiments and γ-activity measurements, the extraction constant corresponding to the equilibrium Na+(aq)+A−(aq)+L(nb)⇆NaL+(nb)+A−(nb) taking place in the two-phase water-nitrobenzene system (A−=picrate, L= dicyclohexyl-18-crown-6; aq-aqueous phase, nb=nitrobenzene phase) was evaluated as logKex(NaL+, A−)=2.6.Further, the stability constant of the dicyclohexyl-18-crown-6-sodium complex in nitrobenzene saturated with water was calculated: αnb(NaL+)=7.8.

引用

页码：229 / 231

页数：2

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