KINETIC-STUDY OF THE ELECTROCHEMICAL PROCESSES OF THE BROMINE BROMIDE AQUEOUS SYSTEM ON VITREOUS CARBON ELECTRODES

The electrochemical processes of the aqueous Br//2/Br** minus system have been studied, by the method of the rotating disc electrode, on two different vitreous carbon electrodes: reticulated vitreous carbon RVC (E. R. G. Inc. , Lowell, Oakland, Calif. ) and smooth vitreous carbon CVJ. On both electrodes the cathodic and the anodic processes involve two consecutive electrochemical steps. The Br//3** minus reduction occurs via formation of Br//2, with which Br//3** minus is in rapid equilibrium, whereupon Br//2 is reduced.