Abstract
The concentration of LiCl in brine and brine volume are obtained as functions of current density by the method of limiting concentration by electrodialysis. These relationships are used for model calculations of current efficiency, the diffusion, osmotic, and electroosmotic permeability of an MK-40/MA-40 membrane pair, and also salt hydration numbers. These theoretical values of water transport numbers and LiCl hydration numbers are compared with corresponding experimental and literature data. It is shown that the model adequately describes the phenomena of the mass electrotransport occurring in electrodialyzers with noncirculating concentration compartments, and it can be successfully applied in calculating the technological parameters of the process, finding the transport properties of ion-exchange membranes, and determining salt hydration numbers in aqueous electrolyte solutions.
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Original Russian Text © A.V. Demin, V.I. Zabolotskii, 2008, published in Elektrokhimiya, 2008, Vol. 44, No. 9, pp. 1140–1146.
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Demin, A.V., Zabolotskii, V.I. Model verification of limiting concentration by electrodialysis of an electrolyte solution. Russ J Electrochem 44, 1058–1064 (2008). https://doi.org/10.1134/S1023193508090115
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DOI: https://doi.org/10.1134/S1023193508090115