Electrochemical Properties of the Ion-Exchange Membranes Junction. I.

This paper reports the investigation of electrochemical phenomena at an electrolytic junction of a rectifying system with membranes, and the behaviour of such a system when current flows through it in forward direction. After formation of such a junction a potential difference appears as it is to be expected. The nature of this potential difference has been examined. When current flows through the system in forward directdvn two processes take place, which are importa nt for the overall resistance of the system: a cha nge in the resistance of the thin layer of liquid between th~ membranes, and a lowering of the potential difference between the membranes. After the termination of a pulse it takes a certain »t ime ·of relaxation « for the system t o return to its original state, i. e. to establish the original potential difference between the membranes. This »time of relaxation« depends on the l ength of the pulse and the intensity of current use d