Electrochemical analysis of the corrosion inhibition properties of 4-hydroxy-3-methoxybenzaldehyde on low carbon steel in dilute acid media

Loto, R. T. (2016) Electrochemical analysis of the corrosion inhibition properties of 4-hydroxy-3-methoxybenzaldehyde on low carbon steel in dilute acid media. Cogent Engineering. pp. 1-18.

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Abstract

The electrochemical behaviour of low carbon steel in 1 M H2SO4 and HCl acid was studied in the presence of 4-hydroxy-3-methoxybenzaldehyde (HMD) as the inhibiting organic compound through weight loss and potentiodynamic polarization technique. Results show HMD has strong corrosion inhibition effects on the steel in the acid solution. HMD performed excellently at all concentrations studied with optimal inhibition efficiency of 96.6 and 92.5% from weight loss analysis and 88.81 and 91.35% for potentiodynamic polarization tests in H2SO4 and HCl. The compound showed mixed inhibition properties in both solutions. Data from statistical analysis through ANOVA shows the overwhelming influence of inhibitor concentration in H2SO4 and exposure time in HCl on the inhibition efficiency of the organic compound. Adsorption of the compound obeyed the Langmuir isotherm. Thermodynamic calculations showed strong physiochemical interactions and spontaneous adsorption mechanism

Item Type:	Article
Uncontrolled Keywords:	adsorption; corrosion; carbon steel; inhibitor; hydrochloric; sulphuric
Subjects:	T Technology > T Technology (General) T Technology > TJ Mechanical engineering and machinery
Divisions:	Faculty of Engineering, Science and Mathematics > School of Engineering Sciences
Depositing User:	Mrs Hannah Akinwumi
Date Deposited:	01 Dec 2016 07:37
Last Modified:	01 Dec 2016 07:37
URI:	http://eprints.covenantuniversity.edu.ng/id/eprint/7453

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