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Stability of complex of Na+ with 18-crown-6 in nitrobenzene saturated with water

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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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Author notes

  1. E. Makrlík

    Present address: Charles University, Faculty of Education, 341 42 Kolinec 250, 116 39, Prague 1, Czech Republic

Authors and Affiliations

  1. Prague Institute of Chemical Technology, 166 28, Prague 6, Czech Republic

    P. Vaňura

Authors
  1. E. Makrlík
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  2. P. Vaňura
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Makrlík, E., Vaňura, P. Stability of complex of Na+ with 18-crown-6 in nitrobenzene saturated with water. J Radioanal Nucl Chem 240, 339–341 (1999). https://doi.org/10.1007/BF02349175

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  • DOI: https://doi.org/10.1007/BF02349175

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