THE ELECTROCHEMICAL-BEHAVIOR OF CAMPHOR-CONTAINING MEMBRANE SYSTEMS

This study concerns an increase in the limiting electrodiffusion curre nt on the volt-ampere curves that are recorded for ion-exchange membra nes after camphor has been adsorbed on their surface. Dependences are obtained for the effective limiting current on the solution flow rate, supporting electrolyte concentration, and coadsorption of organic sub stances. It is concluded that the effect of increase in the limiting c urrent on the polarization curves in a camphor-containing membrane sys tem falls in the category of interfacial processes where the adsorptio n of surfactant molecules affects the transport of ions through the me mbrane/solution interface. The two-dimensional camphor clusters that a re formed at active centers on the membrane surface accentuate the mic roinhomogeneity of the interface, and this causes the solution to flow in thin layers adjacent to the membrane.