Abstract

AbstractTransport numbers of the hydrogen ion within the cation permselective membranes equilibrated with sulfuric acid solutions have been calculated employing sorption data. Calculations were performed according to the equation of Arnold and Swift. The validity of this equation and resulting t+(app) has been verified by independent determination of transport numbers by the EMF method. The equation has been derived which relates the permselectivity of membranes to the parameters describing their nonuniformity, i. e. to the nonuniformity factor Z and volume fraction of nonselective domains (Δϕ).

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