Stability of dicyclohexyl‐18‐crown‐6‐hydrogen complex in nitrobenzene saturated with water

被引：0
|
作者：
E. Makrlík
P. Vaňura
M. Vobecký
机构：
[1] University of West Bohemia,Institute of Interdisciplinar Studies
[2] Prague Institute of Chemical Technology,Department of Analytical Chemistry
[3] Academy of Sciences of the Czech Republic,Institute of Analytical Chemistry
来源：
Journal of Radioanalytical and Nuclear Chemistry | 2002年 / 253卷
关键词：
Physical Chemistry; Inorganic Chemistry; Aqueous Phase; Stability Constant; Nitrobenzene;
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摘要：
From extraction experiments with 22 Na as a tracer, the extraction constant corresponding to the equilibrium H+ (aq)+NaL +(nb) ⇔HL+ (nb)+Na + (aq) in the two‐phase water‐nitrobenzene system (L = dicyclohexyl‐18‐crown‐6; aq = aqueous phase, nb = nitrobenzene phase) wasevaluated in the form log K ex (H+ , NaL+ ) = 0.2. Further, the stability constant of the complex HL+ in nitrobenzene saturated with water wascalculated for a temperature of 25 °C : log bnb (HL+ ) = 7.7.
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页码：165 / 166
页数：1
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