The determination of standard Gibbs energies of transfer of cations across the nitrobenzene/water interface using a three-phase electrode

  • Scholz F
  • Gulaboski R
  • Caban K
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Abstract

A three-phase electrode consisting of a droplet of a nitrobenzene solution of iron(III) tetraphenyl porphyrine chloride (Fe(III)TPP-Cl) attached to a graphite electrode and immersed in an aqueous electrolyte solution was applied to determine the standard Gibbs energies of transfer of cations between water and nitrobenzene. The reduction of Fe(III)-TPP-Cl prompts the transfer of the cations from the aqueous to the organic phase. The system is chemically and electrochemically reversible. © 2003 Elsevier B.V. All rights reserved.

Author-supplied keywords

  • Cation transfer
  • Iron(III) tetraphenyl porphyrine chloride
  • Lipophilicity
  • Liquid/liquid interface
  • Three-phase electrode

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Authors

  • Fritz Scholz

  • Rubin Gulaboski

  • Karolina Caban

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