Stability of complex of Na+ with 18-crown-6 in nitrobenzene saturated with water |
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| Authors: | E Makrlík P Vaňura |
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| Institution: | (1) Present address: Charles University, Faculty of Education, 341 42 Kolinec 250, 116 39 Prague 1, Czech Republic;(2) Prague Institute of Chemical Technology, 166 28 Prague 6, Czech Republic |
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| Abstract: | From extraction experiments and γ-activity measurements, the extraction constant corresponding to the equilibrium Na+(aq)+HL+(nb)⇆NaL+(nb)+H+(aq) taking place in the two-phase water-nitrobenzene system (L=18-crown-6; aq=aqueous phase, nb=nitrobenzene phase) was evaluated
as logK
ex
(Na+,HL+)=0.1. Further, the stability constant of the 18-crown-6-sodium complex in nitrobenzene saturated with water was calculated:
logβ
nh(NaL+)=8.0. |
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| Keywords: | |
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