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| ANODIC POLARIZATION BEHAVIOR OF Fe/Na_2SO_4 SYSTEM IN THE PRESENCE OF MAGNETIC FIELD AND ADDITIONAL IONS |
| CHEN Jun-ming LU Zhan-peng (Shanghai Institute of Metallurgy; Chinese Academy of Science; Shanghai 200050) |
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Abstract Experimental reaults showed that additional ions (OH-, CO32-, HCO3- ,PO43- ,Cr2O72-, H+) present at a certain concentration in Na2SO4 solution would alter the anodic polarization curves of Fe/0.05 mol·L-1 Na2SO4 system. That could be attributed to one of the following causes: (1) increases in [OH-]; (2) acceleration of FeSO4 dissolution at interface; (3) occurrence of new electrode reaction and (4) obstruction of the formation of iron oxide film. Magnetic field would change the role of additional anions in the anodic reaction of Fe/Na2SO4 system to some extent dependent on their species and concentrations. Besides, magnetic field would increase the anodic current density in acid, neutral and weak alkaline solutions.
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Received: 25 April 1998
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Cite this article:
CHEN Jun-ming LU Zhan-peng (Shanghai Institute of Metallurgy; Chinese Academy of Science; Shanghai 200050). ANODIC POLARIZATION BEHAVIOR OF Fe/Na_2SO_4 SYSTEM IN THE PRESENCE OF MAGNETIC FIELD AND ADDITIONAL IONS. J Chin Soc Corr Pro, 1998, 18(2): 119-125.
URL:
https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y1998/V18/I2/119
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