Accession Number : AD0692710

Title :   BEHAVIOR OF LEAD ELECTRODES IN SULFURIC ACID SOLUTIONS. II,

Corporate Author : LOYOLA COLL MONTREAL (QUEBEC) DEPT OF CHEMISTRY

Personal Author(s) : Tarter,E. ; Ekler,K.

Report Date : 26 SEP 1968

Pagination or Media Count : 7

Abstract : An attempt was made to clarify the question whether the variation in the length of the 'first discharge plateau' with change in H2SO4 concentration was caused by a change in the efficiency of PbO2 formation or by a variation in its discharge rate. The relationships between acid concentration, 'passivation time', amount of PbSO4 formed during passivation, and the quantity of PbO2 derived therefrom during charging were investigated. The amount of PbSO4 on the anode increased with a decrease in passivating acid concentration. More PbO2 was formed at lower charging acid concentrations. The higher the discharge acid concentration, the greater was its stabilizing effect on PbO2 discharge. The combination of two factors i.e. a decrease of the amount of PbO2 formed at higher acid concentrations together with an increase in the PbO2 stability, gave rise to the maximum 10.5 N H2SO4. (Author)

Descriptors :   (*LEAD(METAL), *ELECTRODES), (*ELECTROCHEMISTRY, *LEAD COMPOUNDS), SULFURIC ACID, ELECTRIC DISCHARGES, PASSIVE SYSTEMS, CANADA

Subject Categories : Physical Chemistry
      Energy Storage

Distribution Statement : APPROVED FOR PUBLIC RELEASE