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Corrosion inhibition properties of the combined admixture of thiocarbanilide and hexadecyltrimethylammoniumbromide on mild steel in dilute acid solutions

Loto, R. T. and Loto, C. A. (2016) Corrosion inhibition properties of the combined admixture of thiocarbanilide and hexadecyltrimethylammoniumbromide on mild steel in dilute acid solutions. Cogent Chemistry, 2.

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Abstract

The synergistic effect of the combined admixture of thiocarbanilide and hexadecyltrimethylammoniumbromide on the electrochemical corrosion behavior and inhibition of mild steel in 1 M H2SO4 and HCl acid media was evaluated through weight loss analysis, potentiodynamic polarization technique, and IR spectroscopy. Results show that the admixture performed effectively in both acid solutions with an average HTH inhibition efficiency of 86.2 and 82% in H2SO4 acid from weight loss and potentiodynamic polarization test while the corresponding values in HCl acid are 79 and 80%, respectively. Thermodynamic calculations showed that the compound chemically adsorbed onto the steel surface blocking the diffusion of corrosive anions and simultaneously suppressing the redox electrochemical process responsible for corrosion. Infrared spectroscopic images revealed the presence of the functional groups of the organic compound responsible for corrosion inhibition

Item Type: Article
Subjects: T Technology > TJ Mechanical engineering and machinery
T Technology > TP Chemical technology
Divisions: Faculty of Engineering, Science and Mathematics > School of Engineering Sciences
Depositing User: Mrs Patricia Nwokealisi
Date Deposited: 16 Jan 2017 13:03
Last Modified: 16 Jan 2017 13:03
URI: http://eprints.covenantuniversity.edu.ng/id/eprint/7533

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