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Mykola Zharkikh (Kyiv)

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Electrophoresis and electrical conductivity of suspensions under the conditions of quasi-equilibrium polarization of the double layer as a whole

Zharkikh N. I., Lyklema J., Dukhin S. S.

The double layer as a whole includes a diffuse part and other structural parts such as, for example, the Stern layer (a porous adsorption layer). Phenomenologically, polarization and, consequently, the electrokinetic behavior of a particle are described by a set of parameters (phenomenological invariants); the moments of double layer and partial surface conductivities for each type of ion should be used as such parameters. On a molecular level, the task is to express these phenomenological invariants in terms of parameters characteristic of individual parts of the double layer. Calculations were performed for a model of a thin adsorption layer, for which the Henry-Stern isotherm is valid. The conductivity increment for such a system was shown to be very sensitive to the mobility of adsorbed potential-determining ions. The magnitude of this mobility may be evaluated by measuring adsorption and conductivity in a wide concentration range.


1. Dukhin, S.S., Adv. Colloid Interface Sci., 1993, vol. 44, p. 1.

2. Shilov, V.N., Zharkikh, N.I., and Borkovskaya, Yu.B., Kolloidn. Zh., 1985, vol. 47, p. 757.

3. Shilov, V.N., Zharkikh, N.I., and Borkovskaya, Yu.B., Kolloidn. Zh., 1985, vol. 47, p. 927.

4. O'Brien, R.W., J. Colloid Interface Sci., 1983, vol. 92, p. 204.

5. Kyjlslra, J., van Leuven, M.D., and Lyklema, J., J. Chem. Soc., Faraday Trans. I, 1992, vol. 88, p. 3341.

6. Dukhin, S.S. and Shilov, V.N., Dielektricheskie Yavleniya і Dvoinoi Sloj v Dispersnykh Sistemdkh і Polielektrolitakh (Dielectric Phenomena and the Double Layer in Disperse Systems and Polyelectrolytes), Kiev: Naukova Dumka, 1972.

7. Zharkikh, N.I. and Borkovskaya, Yu.B., Fiziko-Khimichcskaya Mekhanika і Liofil'nost' Dispesnykh Sistem (Physicochemical Mechanics and Lyophilicity of Disperse Systems), Kiev: Naukova Dumka, 1985, vol. 17, p. 76.

8. Razilov, I.A., Pendze, G., and Dukhin, S.S., Colloid. J., 1994, vol. 56, no. 5, p. 610.

9. Dukhin, S.S. and Derjaguin, B.V., Elektroforez (Electrophoresis), Moscow: Nauka, 1976.

10. Dukhin, S.S. and Seminikhin, N.M., Kolloidn. Zh., 1970, vol. 32, p. 360.

11. Dukhin, S.S., Issledovaniya v Oblasti Poverkhnostnykh Sil (Studies of Surface Forces), Moscow: Nauka, 1967, p. 335.

12. Lyklema, J., Dukhin, S.S., and Shilov, V.N., J. Electroanal. Chan., 1983, vol. 143, p. 1.

13. Simonova, T.S. and Shilov, V.N., Kolloidn. Zh., 1986, vol. 48, p. 370.

14. Yaroshchuk, A.E., Kolloidn. Zh., 1985, vol. 47, no. 5, p. 1006.

15. Ohshrma, H., J. Colloid Interface Sci., 1994, vol. 163, p. 80.

16. Dukhin, S.S. and Derjaguin, B.V., Electrokinetic Phenomena, Matijevic, E., Ed., Surface Colloid Sci. Ser., vol. 7, New York: Wiley, 1974.

17. Zharkikh, N.I., Pendze, X., and Dukhin, S.S., Colloid. J., 1994, vol. 56, no. 5, p. 571.

18. Zharkikh, N.I., and Dukhin, S.S., Colloid. J., 1994, vol. 56, № 6, p. 755 – 760.

19. Donath, E. and Pastushenko, V., Bioelectrochem. Bioenerg., 1979, vol. 6, p. 343.

Biocolloid chemistry institite, Academy of sciences of Ukraine, Kyiv

Received 14 Mar 1994

Published : Colloid Journal (Moscow), 1994, vol. 56, № 6, p. 761 – 766.

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