Electrochemical study of the water-isobutylmethyl ketone interface

  • Koczorowski Z
  • Geblewicz G
  • Paleska I
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Abstract

Results of electrochemical studies of the interfaces water-isobutylmethyl ketone (hexone) solutions are presented. Distribution potentials (Galvani potentials) of several electrolytes were measured and from these data ionic potential components have been evaluated. From the measurements carried out by cyclic voltammetry, chronopotentiometry and ac voltammetry, the polarization potential range of the interface separating 0.025 M LiCl, aqueous, and 0.025 M tetrabutylammonium tetraphenylborate, hexone, solutions has been estimated. The transfer reaction of tetraethylammonium ion has been studied at this interface. The higher miscibility of water and hexone, in comparison with water-nitrobenzene or water-1,2-dichloroethane systems, leads to the standard Gibbs energies of ion transfer becoming close to each other. © 1984.

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Authors

  • Zbigniew Koczorowski

  • Grazyna Geblewicz

  • Iwona Paleska

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