Water transport in ion exchange membranes |
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| Authors: | Phietoon Trivijitkasem Terje Østvold |
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| Affiliation: | Institutt for uorganisk kjemi, Norges tekniske høgskole, Universitetet i Trondheim, N-7034 Trondheim-NTH, Norway |
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| Abstract: | Water transport across ion exchange membranes has been studied experimentally. Water transference numbers were obtained from streaming potential measurements for cation and anion exchange membranes. At low salt concentration the water transference number reaches a limiting value which for the cation exchange membranes seems to be closely correlated with the cation—water friction in infinite dilute solutions.The observed water transference number for a given anion exchange membrane does not seem to be much dependent on the type of coion even at concentrations where the membrane is no longer perfectly permselective. |
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| Keywords: | To whom correspondence should be addressed. |
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