THE DEPENDENCE OF ELECTRICAL CONDUCTIVITY OF ION‑EXCHANGE MEMBRANES ON THE CHARGE OF COUNTER IONS

  • Tolera Seda Badessa
  • Vladimir Shaposhnik
Keywords: impedance meter, contact-difference method, cation- and anion-exchange membranes, multiply charged ions, specific conductivity.

Abstract

In this work the impedance of cation- and anion-exchange membranes has been measured
in electrolyte solutions with ions of different charges in a wide range of concentrations. It is shown
that the true value of membrane specific conductivity can be obtained only with the infinite dilution
of the equilibrium electrolyte. It has been found that the cation-exchange membrane conductivity
decreases with increasing the charge of the counter ions. The specific conductivity of anion-exchange
membranes at the infinite dilution is constant due to the fact that multiply charged anions in a neutral
medium are transferred to singly charged counter ions.

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Author Biographies

Tolera Seda Badessa

post graduate student, Department of Analytical Chemistry, Voronezh State University;
e-mail: toleraseda@yahoo.com

Vladimir Shaposhnik

Dr. Sci. (Chem.), Professor of Analytical Chemistry, Voronezh State University; e-mail:
v. a.shaposhnik@gmail.com

References

1. Gibbs J. W. // Trans. Connect. Acad. Sci. 1876. V. 3.P. 108.
2. Donnan F. Z. // Elektrochemie und angewandte physikalische Chemie. 1911. Bd. 17. S. 572.
3. Vinod K. S., et al. // Indian Journal of Chemistry. 2000. V. 39A. P. 1264.
4. Green A., Weech A., Michaelis L. // J. Gen. Physiol. 1929. V. 12. P. 473.
5. Juda W., McRae W. // J. Amer. Chem. Soc. 1950. V. 72. P. 1044.
6. Kressman T. R.E. // Nature. 1950. V. 165. P. 586.
7. Shaposhnik V. A., Emel’yanov D.E., Drobysheva I. V. // Colloid J. 1984. V. 46. № 4. Р. 820.
8. Badessa T. S., Rodionov A. Y., Shaposhnik V. A. // Sorption and chromatography processes. 2012. V. 13. № 4. Р. 449.
9. Peters D. G., J. M. Hayes J. M., Hieftje G. M. Separation and Measurements. Sauders Company, 1974.
Published
2014-06-22
How to Cite
Badessa, T. S., & Shaposhnik, V. (2014). THE DEPENDENCE OF ELECTRICAL CONDUCTIVITY OF ION‑EXCHANGE MEMBRANES ON THE CHARGE OF COUNTER IONS. Condensed Matter and Interphases, 16(2), 129-133. Retrieved from https://journals.vsu.ru/kcmf/article/view/816
Section
Статьи