Accession Number : AD0476409


Title :   DIRECT EVIDENCE FOR THE CATHODIC DEPOLARIZATION THEORY OF BACTERIAL CORROSION


Corporate Author : ARMY BIOLOGICAL LABS FREDERICK MD


Personal Author(s) : Iverson, Warren P


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/476409.pdf


Report Date : Dec 1965


Pagination or Media Count : 15


Abstract : Direct evidence has been obtained to substantiate the cathodic depolarization theory of von Wolzogen Kuhr and van der Vlugt, which involves the removal of hydrogen and reduction of an electron acceptor (benzyl viologen) at the cathode by Desulfovibrio desulfuricans and liberation of iron at the anode. Direct measurement of the cathodic depolarization current has been made and its levels appear to be too low to account for the corrosion of iron in the field by this mechanism. Aluminum alloys can also be cathodically depolarized.


Descriptors :   *BACTERIA , POLARIZATION , CORROSION , THEORY , HYDROGEN , IRON , ELECTRODES , SPIRILLACEAE , ELECTROLYSIS , CULTURE MEDIA , CATHODES(ELECTROLYTIC CELL) , REDUCTION(CHEMISTRY)


Subject Categories : Microbiology
      Physical Chemistry


Distribution Statement : APPROVED FOR PUBLIC RELEASE