Inhibition of Alkaline Corrosion of Mild Steel Using Synthetic 2-(4-Methylphenylsulphonamido)-3-Methylbutanoic Acid
Published: 2023-07-09
Page: 468-476
Issue: 2023 - Volume 6 [Issue 3]
Adindu Chinonso Blessing *
Department of Chemistry, Imo State University, Owerri, Nigeria.
*Author to whom correspondence should be addressed.
Abstract
Aim: To study the corrosion inhibition performance of 2-(4-Methylphenylsulphonamido)-3-methylbutanoic acid (MPSMB) on mild steel in 0.1 M KOH.
Study Design: The study will investigate the inhibitive performance of the inhibitor at different concentrations and immersion times as well as test its electrochemical corrosion properties. Theoretical simulation will be used to correlate the experimental results.
Place and Duration: Imo state University Owerri, Imo State Nigeria. Between June 2022 and May 2023
Methodology: Gravimetric, electrochemical and simulation methods.
Results: The obtained gravimetric results showed that the inhibitor reduced mild steel corrosion in the studied environment and that the efficacy of the inhibitor improved with increased concentration of the inhibitor. Polarization findings revealed that the inhibitor retarded the corrosion reactions in a mixed-mode manner while electrochemical impedance spectroscopy and theoretical simulation findings were used to complement the obtained results.
Conclusion: The results obtained showed that 2-(4-Methylphenylsulphonamido)-3-methylbutanoic acid effectively retarded the corrosion of mild steel in 0.1 M KOH.
Keywords: Corrosion, 2-(4-Methylphenylsulphonamido)-3-methylbutanoic acid, electrochemistry, impedance, density functional theory
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