Change in permselectivity between sulfate and chloride ions through anion exchange membrane with hydrophilicity of the membrane

摘要

The transport number of sulfate ions relative to chloride ions through an anion exchange membrane was measured by electrodialyzing a sodium sulfate and sodium chloride had good affinity to ethylene glycol and diethylene glycol. The membrane in diethylene glycol because the membrane bad good affinity to ethylene glycol. the transport number of sulfate ions relative to chloride ions increased in the presence of diethylene glycol in them membrane. This is due to the increase in the uptake of sulfate ions in the membrane compared with chloride ions, not to the change in a ratio of mobilities of both anions.