Electrode-Electrolyte Interactions Magnesium Anodes : : meta-Dinitrobenzene Cathodes
Semiannual rept. no. 3, 1 Jan-30 Jun 1969
NEW YORK UNIV BRONX DEPT OF CHEMICAL ENGINEERING
Pagination or Media Count:
The electrochemical dissolution of magnesium AZ-21 and hydrogen evolution reaction on magnesium in MgClO42, SrClO42, NaClO4, and NaClO4- MgClO42 electrolyte mix have been investigated. The electrochemical reduction of meta-dinitrobenzene in NaClO4 and MgClO42 has also been studied. Polarization data indicate the corrosion current density of the magnesium electrode is much smaller in the NaClO4 than in the other electrolytes studied. In the NaClO4 - MgClO42 electrolyte mix the corrosion current density of the magnesium electrode increases as the proportion of MgClO42 is increased. In the mixed electrolyte system the magnesium electrode can exhibit two distinctly different corrosion current densities. These corrosion current densities are dependent upon the history of the electrode. The rate of meta-dinitrobenzene reduction in NaClO4 and MgClO42 was found to be about equal. Even though the reduction rate in the two electrolytes was equal, different reaction products apparently were formed.
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