Inhibitive effect of Xylopia ferruginea extract on the corrosion of mild steel in 1M HCl medium |
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| Institution: | Pandian Bothi Raja1),Afidah Abdul Rahim1),Hasnah Osman1),and Khalijah Awang2)1) School of Chemical Sciences,Universiti Sains Malaysia,11800 Penang,Malaysia 2) Department of Chemistry,Faculty of Science,University of Malaya,50603 Kuala Lumpur,Malaysia |
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| Abstract: | The alkaloid content of the leaves and stem bark of Xylopia ferruginea plant was isolated and tested for its anticorrosion potential on mild steel corrosion in a hydrochloric acid medium by using electrochemical impedance spectroscopy,potentiodynamic polarization measurement,scanning electron microscopy(SEM),and Fourier transform infra red(FTIR) analysis.The experimental results reveal the effective anticorrosion potential of the plant extract.The mixed mode of action exhibited by the plant extract is evidenced from the polarization study.SEM images proof the formation of a protective layer over the mild steel surface,and this is supported by the FTIR study.The possible mode of the corrosion inhibition mechanism has also been discussed. |
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| Keywords: | steel corrosion hydrochloric acid plant extracts corrosion inhibitors polarization |
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