Abstract

A modified method to measure ion fluxes and effective ion transport numbers across an anion-exchange membrane is proposed in this work. This method involves the hydrodynamic isolation of the membrane from the interfering effect of processes that occur in membranes localized on both sides of the studied membrane–adjacent solution system. Unlike the well-known method of the hydrodynamic isolation of the studied membrane, the proposed method provides an experimental determination of the fluxes and transport numbers across an anion-exchange membrane for all ions, particularly in an asymmetric system, in which solutions localized on both sides of the studied membrane have different compositions. The possibilities of the proposed method are shown using the example of the sulfuric acid solution|anion-exchange membrane|solution containing diethylamine and diethylammonium sulfate system.

中文翻译：

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一种改进的流体动力学隔离方法，可测量硫酸-胺-胺盐体系中跨阴离子交换膜的离子通量和离子迁移数

摘要

在这项工作中，提出了一种改进的方法来测量离子通量和穿过阴离子交换膜的有效离子迁移数。该方法涉及膜的流体动力学隔离，该过程与被研究膜相邻溶液系统两侧的膜中发生的过程的干扰作用无关。与众所周知的研究膜的流体动力学分离方法不同，该方法为所有离子提供了通过阴离子交换膜的通量和迁移数的实验确定，特别是在非对称系统中，在该系统中溶液均位于两个被研究膜的两面具有不同的成分。