Salt Formation During the Anodic Dissolution of Iron in (NH sub 4 ) sub 2 SO sub 4 at pH = 2. II. Transient Behaviour

Anodic potentiostatic and galvanostatic transients of an Fe electrode in (NH sub 4 ) sub 2 SO sub 4 at pH = 2 for different concentrations were carried out. The electrical responses in both cases were similar to those obtained by previous workers with similar systems and are related to the growth of...

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Bibliographic Details
Published in:Electrochimica acta 1989-06, Vol.34 (6), p.789-794
Main Authors: Moina, C, Posadas, D
Format: Article
Language:English
Online Access:Get full text
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Summary:Anodic potentiostatic and galvanostatic transients of an Fe electrode in (NH sub 4 ) sub 2 SO sub 4 at pH = 2 for different concentrations were carried out. The electrical responses in both cases were similar to those obtained by previous workers with similar systems and are related to the growth of a salt film that covers the electrode surface. Part of the transients can be interpreted through a model of crystal growth. The critical oversaturations and other parameters obtained from such analysis are reasonable when compared with previous work. Graphs, photomicrographs. 17 ref.--AA
ISSN:0013-4686