Abstract
By using a liquid ion-exchange membrane consisting of tri-n-octylammomium salt (Farmin T-08, Kao Soap Co.), some measurement are taken on the concentration potentials across the membrane which separates two solutions with different concentrations of a simple electrolyte KCl, or Na2SO4.
It is found that the transport number of chloride ions and sulfate ions in the liquid membrane are 0.8-0.95 and 0.6-0.8, respectively, and the behavior is in a good agreement with that in the usual ion-exchange membrane.