Abstract
As a measuring method of kinetic transport number of ion exchange membrane, the transport number of halide ions across anion exchange membrane was determined from transfer equivalent of potassium ion, that is co-ion, for a system having potassium chloride solution in anode side and sodium halide solution in cathode side to anion exchange membrane.
The transport number of halide ions decreased due to an increase in the concentration of potassium chloride solution in anode side and also of current density. These facts were due to the increase of Donnan absorbed ion with an increase of concentration of potassium halide in interfacial layer of anode side to anion exchange membrane. But the concentration of sodium halide solution in cathode side had no effect on the transport number of halide ions.
The transport number of halide ions determined by this method decreased inthe following order; F->C1->Br->I-
