Inhibition effect of thioglycolic acid on carbon dioxide corrosion of carbon steel

Corrosion inhibition of mild steel in aqueous salt environments containing carbon dioxide (CO2) by thioglycolic acid (MA) was studied using various electrochemical and analytical techniques. The inhibitor performance and its inhibition efficiency at various concentrations and the effect of exposure...

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Bibliographic Details
Published in:Corrosion (Houston, Tex.) Tex.), 2004-10, Vol.60 (10), p.965-973
Main Authors: BILKOVA, K, HACKERMAN, N, BARTOS, M
Format: Article
Language:English
Subjects:
Acids
Analytical methods
Applied sciences
Carbon
Carbon dioxide
Carbon steel
Carbon steels
Cathodic protection
Corrosion
Corrosion effects
Corrosion environments
Corrosion inhibitors
Corrosion mechanisms
Corrosion prevention
Electrochemistry
Exact sciences and technology
Low carbon steels
Metals. Metallurgy
pH effects
Probability theory
Thioglycolic acid
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Summary:Corrosion inhibition of mild steel in aqueous salt environments containing carbon dioxide (CO2) by thioglycolic acid (MA) was studied using various electrochemical and analytical techniques. The inhibitor performance and its inhibition efficiency at various concentrations and the effect of exposure time and pH of the solution were evaluated. The proposed mechanism of inhibition by TGA considers the complexity of experimental data obtained by various techniques. This mechanism is discussed in terms of adsorption, protective film formation, and especially pH effect and the chemistry of the solution. The probability of local attack caused by TGA is also taken into consideration.
ISSN:0010-9312
1938-159X
DOI:10.5006/1.3287831