Mallika, J (2017) SYNERGISTIC EFFECT OF GUM EXUDATE ON SUBSTITUTED PIPERIDINE-4-ONE IN CORROSION INHIBITION OF MILD STEEL IN ACIDIC MEDIUM. Rasayan Journal of Chemistry, 10 (4). ISSN 0976-0083

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Abstract

Moringa oleifera gum exudate a non-toxic organic compound, is introduced as a synergist to 3,5-Dimethyl-2,6-
diphenylpiperidin-4-one and the corrosion inhibition of mild steel in the Hydrochloric acid medium is studied using
weight loss method, potentiodynamic polarization and electrochemical impedance spectroscopy. Results show that
3,5-Dimethyl-2,6-diphenylpiperidin-4-one alone provided an average inhibition of the corrosion of mild steel and it
was found that the inhibition efficiency increased synergistically in the presence of Moringa oleifera gum exudate.
The inhibition efficiency increased with increase in the concentration of the inhibitor but decreased with a rise in
temperature. Polarization studies reveal that the inhibitor system is of a mixed type. Impedance studies point out that
a protective film is formed on the mild steel surface in the presence of the inhibitor. Fourier transform infrared
spectroscopy and scanning electron microscopy studies were used to investigate the nature of protective film formed
on the mild steel surface.

Item Type: Article
Uncontrolled Keywords: Corrosion inhibitor, Mild steel, Weight loss, Electrochemical impedance spectroscopy, FTIR, SEM, Surface morphology
Divisions: PSG College of Arts and Science > Department of Chemistry
Depositing User: Mr Team Mosys
Date Deposited: 06 Jul 2023 08:24
Last Modified: 06 Jul 2023 08:24
URI: http://ir.psgcas.ac.in/id/eprint/1963

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