Inhibitory Effect of Leaf Extract of Khaya senegalensis (Mahogany) on C-steel Corrosion in 1.0 M Hydrochloric Acid Solution

Ali, Ismat (2016) Inhibitory Effect of Leaf Extract of Khaya senegalensis (Mahogany) on C-steel Corrosion in 1.0 M Hydrochloric Acid Solution. International Journal of Electrochemical Science, 10 (3). pp. 2130-2141.

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Abstract

Acid extract of leaves of (Mahogany) Khaya senegalensis (LKS) plant was investigated as inhibitor for the corrosion of C-steel in 1.0 M HCl. Several methods were used to investigated the efficiency of LKS i.e. weight loss measurements, scanning electronic microscope, polarization curves and electrochemical impedance spectroscopy. Amount of corrosion in carbon steel and the inhibition effectiveness of the extract were determined. The results obtained show that the extract could be considered as a good inhibitor for the corrosion of C-steel in HCl media. Inhibition was found to increase with increasing concentration of the LKS. Studies were carried out at different concentrations of LKS and at various temperatures. Polarization study shows that LKS extract acts as a mixed-sort inhibitor with a major cathodic effectiveness. The increase in concentration of Mahogany extract shows a positive effect on inhibition efficiency while corrosion of the carbon steel increased with a rise in temperature both in the presence and absence of the LKS extract. Activation parameters were calculated. Surface of C-steel was investigated using scanning electron microscope (SEM).

Item Type: Article
Subjects: Chemistry
Divisions: Female College of Sciences - Abha > Chemistry
Depositing User: Ismat SidAhmed
Date Deposited: 13 Jun 2017 09:44
Last Modified: 13 Jun 2017 09:44
URI: http://eprints.kku.edu.sa/id/eprint/249

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