Inhibitive Potential of Prosopis Africana on Corrosion of Low Carbon Steel in 1M Hydrochloric Acid Medium.
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Date
2019-06-20
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Published by Deer Hill Publications, B-19-06 PV8, Platinum Hill Condominium Jalan Melati Utama, 53100 Kuala Lumpur Malaysia.
Abstract
Recently, there is quest for the use of inexpensive, non-toxic, non-biodegradable, readily available and environmentally acceptable corrosion inhibitor. Studies have shown that these properties could be achieved through the use of plants as inhibitor. Inhibiting effect of Prosopis Africana(Iron Tree) seed extracts were assessed on a sample of low carbon steel in 1M HCl with varying proportion of the seed extract using gravimetric, Tafel polarization and gasometrical measurement techniques. The results show that weight loss/corrosion rate decreases with increase in the extracts’ concentrations. Good inhibiting efficiency of Prosopis Africanaextracts with optimum inhibiting efficiency of 97.7% at 1.0 g/l after 120 hours exposure in gravimetric measurement was attained. TAFEL polarization results revealed that the Prosopis Africanaextract shows that the corrosion current density decreases with the increase in the concentration of the extract. The extractis found suitable as green inhibitor for corrosion of low carbon steel in the studied medium.
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Keywords
Mild steel, Prosopis Africana, Weight loss, Inhibiting efficiency, Tafel Polarization
Citation
Shuaib–Babata, Y. L., Ibrahim, H. K., Ambali, I. O., Yahya, R. A., Ajao, K. S., Aremu, N. I., Pelumi, A. A. (2019): Inhibitive Potential of Prosopis Africana on Corrosion of Low Carbon Steel in 1M Hydrochloric Acid Medium. International Journal of Engineering Materials and Manufacture. 4(2); 66-76. https://doi.org/10.26776/ijemm.04.02.2019.04