Measurement of the electrical conductivity of electrolytes and heterogeneous materials containing them is accompanied by numerous physical and electrochemical processes, complicating measuring and interpretation of data. As a result, the measurement of the electrical conductivity of such a system is a difficult and not finally resolved problem. The new method of resistance measurement of the electrolytic systems is substantiated and tested on example of heterogeneous electrolytic system “lignin-calcium chloride water solution” in this article. The method is based on measurement of resistance of the electrolytic system at different voltages (DC) on the cell and the consequent approximation of the acquired data taking into consideration volume charges and potential barriers arising on the boarders of electrodes and electrolytic materials. Extrapolation of the resistance to the limiting small current lets one obtain a characteristic value of the active resistance of the electrolytic system. The method is technically simple, inexpensive and has several advantages compared to the methods based on AC measurements.
References
[1]
[1]Seregin, M.Y., Mishchenko, S.V., Gerasimov, B.I., Glinkin, E.I. and Ermakov, V.V. (1996) The Method of Determining the Concentration of the Electrolyte. Russian Federation Patent No 2064671. (In Russian)
[2]
Katin, Y.V., Mishchenko, S.V., Gerasimov, B.I., Glinkin, E.I., Petrov, S.V. and Seregin, M.Y. (1994) The Method of Determining the Concentration of the Electrolyte and Device for Its Implementation. Russian Federation Patent No. 2011983. (In Russian)
[3]
Bukreev, D.V., Vlasov, M.E., Gerasimov, B.I., Glinkin, E.I. and Seregin, M.Y. (1998) The Method of Determining the Concentration of the Electrolyte and Device for Its Implementation. Russian Federation Patent No. 2105295. (In Russian)
[4]
Bukreev, D.V., Glinkin, E.I., Mishchenko, S.V. and Romashin, A.Y. (1999) The Method of Determining the Concentration of the Electrolyte and Device for Its Implementation. Russian Federation Patent No. 2132550. (In Russian)
[5]
Prusak, V.M. (1995) Device for Measuring the Electrical Conductivity of a Liquid. Russian Federation Patent No. 2027174. (In Russian)
[6]
Grinchik, N.N. (2014) Electrodynamics of Inhomogeneous (Laminated, Angular) Structures. Journal of Electromagnetic Analysis and Applications, 6, 57-105.
https://doi.org/10. 4236/jemaa.2014.65009/
[7]
Newman, J. (1973) Electrochemical Systems. Prentice Hall, NJ.
[8]
Zefirov, N.S. (1998) Chemical Encyclopedia. Vol. 5. Moscow, Bol’shaya Rosciiskaya Entsiklopediya Publication 783 (in Russian).
[9]
Dudin, I.V. and Narimanov, R.K. (2004) Resistance at Slow Motion of an Ellipsoid. Izvestiya Tomskogo Politekhnicheskogo Universiteta (Bulletin of the Tomsk Polytechnic University), 307, 17-21. (In Russian)
[10]
Grinchik, N.N., Dobrego, K.V. and Chumachenko, M.A. (2018) On the Measurement of Electric Resistance of Liquid Electrolytes of Accumulator Battery. Enеrgеtika. Energetika. Proceedings of CIS Higher Education Institutions and Power Engineering Associations, 61, 494-507. (In Russian)
[11]
Baker, G. and Graves-Morris, P. (2009) Padé Approximants. 2nd Edition, Cambridge University Press, Cambridge, 746.
https://doi.org/10.1017/CBO9780511530074
[12]
Berne, F. and Cordonnier, J. (1995) Industrial Water Treatment. Gulf Professional Publishing, Houston, 248 p.
