WATER DISSOCIATION RATE AT CATION-EXCHANGE MEMBRANE - INFLUENCE OF INSOLUBLE METAL-HYDROXIDES

The influence of residues of Cu(OH)(2), Fe(OH)(3), Co(OH)(2), and Ni(O H)(2) insoluble hydroxides on the rate of water dissociation at the MK -40 sulfoacid membrane was investigated. The dissociation rate was jud ged by transport numbers of hydrogen and hydroxyl ions transferred thr ough the membrane. Transport numbers for salt ions and water dissociat ion products transferred through the MK-40 membrane, on whose surface hydroxide residues were deposited, were measured. The possibility of c atalytic participation of metal hydroxides in the reaction of water di ssociation at the ion-exchange membrane-electrolyte solution interface was shown.