Title: The Influence of Chloride and Sulfate Ions on the Corrosion of Iron in Sulfuric Acid
Abstract: The influence of chloride and sulfate ions on the corrosion of iron in media at pH near 3 was studied. It was shown that both ions could be either aggressive or not aggressive under definite conditions. Chloride ions accelerate corrosion considerably when the anodic reaction contributes significantly to the over‐all kinetics. Sulfate ions accelerate corrosion when the reaction is under cathodic control. Chloride ions decreased the protective action of socalled anodic inhibitors ( and ) whereas sulfate ions interfere with the action of thiourea, a cathodic inhibitor. The corrosion potential is independent of the chloride concentration but is shifted in the negative direction by sulfate, These observations are interpreted in terms of the properties of and complexes. The chloride complex serves simply to carry Fe++ away from the metal surface.
Publication Year: 1971
Publication Date: 1971-01-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 22
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