Performance of Mild Steel in Nitric Acid/<i>Carica Papaya</i> Leaf Extracts Corrosion System
Keywords:
Carica papaya, corrosion inhibitor, weight loss, gasometryAbstract
Corrosion inhibition efficiency of leaf extracts from Carica papaya has being investigated using gravimetric, gasometric and thermometric techniques. Carica papaya leaf extracts reduced the corrosion rate of mild steel in 2.5M nitric acid by interfering with both anodic and cathodic reactions. The corrosion rate in the absence of the inhibitor was 840 mmpy while at 60% inhibitor concentration, it was 60 mmpy. The corrosion rate decreased rapidly initially as the concentration of the inhibitor increased and attained an efficiency of 93% at a concentration of 60%. The complimentary inhibition efficiencies, E%, obtained from thermometric and gasometric techniques are similar in values and range from about 93% to 96%. The adsorption of the active components of the leaf extracts follows the Langmuir adsorption isotherm
References
M. Oki, E. Charles, C. Alaka, T. K. Oki, “Corrosion inhibition of mild steel in HCl by tannins from Rhizophora racemosa,†Materials Science and Applications, vol. 2, pp. 592–595, 2011.
S. Banerjee, A. Mishra, M. M. Singh, B. Maiti, B. Ray, P. Maiti, “Highly efficient polyurethane ionomer corrosion inhibitor: the effect of chain structure,†RSC Advances, vol. 1, pp.199–210, 2011.
M. A. Amin, S. S. A. EI-Rehim, E. E. F. El-Sherbini, O. A. Hazzazi, M. N. Abbas, “Polyacrylic acid as a corrosion inhibitor for aluminium in weakly alkaline solutions. Part I:weight loss, polarization, impedance EFM and EDX studies,â€Corrosion Science, vol. 51, no. 3, pp. 658–667, 2009.
S. Banerjee, A. Mishra, M. M. Singh, P. Maiti, “Effects of naniclay and polyurethanes on inhibition of mild steel corrosion,†Journal of Nanoscience and Nanotechnology, vol. 11, no. 2, pp. 966–978, 2011.
*[5] R. Solmaz, G. Kardas¸, M. C¸ulha, B. Yazici, M. Erbil, “Investigation of adsorption and inhibitive effect of 2-mercaptothiazoline on corrosion of mild steel in hydrochloric acid media,†Electrochimica Acta, vol. 53, no. 20, pp. 5941–5952, 2008.
M. OKI, J.O.E. Otaigbe, T. K Oki, S. Otikor, “Corrosion inhibition of Aluminium in HCl by Amine Modified Epoxy Resinâ€, Journal of Materials.[Online]. (479728). p. 5 pages, 2013. Available from: http://dx.doi.org/10.1155/2013/479728. [Accessed: 28 April 2014]
L Jin, L Wang, D Chen, “Corrosion inhibition on hygroscopic inorganic dust-depressorâ€, J. Univ. Sci. Technol. Beijing, vol.13, No4, pp 368-371, 2006.
S. K Boocock, “Non-chromate corrosion inhibitor formulas based on permanganate sodalite compositions†US patent 0075113A1, 2009.
P. Visser, “Novel chrome-free system resists attack on aluminium alloysâ€, European coatings Journal, vol.12, pp 87-92, 2010.
M. W. Kendig, R. G. Buchheit, “Corrosion Inhibition of Aluminium and Aluminium Alloys by Soluble Chromates, Chromate Coatings, and Chromate-Free Coatingsâ€, Corrosion, 59 (5). pp 379–400, 2003.
E. Chaaieb, A. Bouyanzer, B. Hammouti, M. Berrabah, “Limonene as green inhibitor for steel corrosion in HCl solutionâ€, Acta Phys-Chim., vol.25 (7). pp. 1254 -1258, 2009.
A. Y. El-Etre, M. Abdallah, Z. E. El-Tantawy, “Corrosion inhibition of some metals using Lawsonia extractâ€, Corrosion Science, 47(2). p. 385–395, 2005.
*[13] M. A. Amin, S. S. Abd El-Rehim, E. E. F. El-Sherbini, O. A. Hazzazi,â€Polyacrylic acid as corrosion inhibitor for aluminium in weakly alkaline solutions. Part I: Weight loss, polarization, impedance EFM and EDX studiesâ€, 51(3). pp. 658-667, 2009.
S. Senthil Kumaran, Kishore Kumar, “Effect of vegetal and synthetic tannins on the corrosion protection of metals, “Proceedings of the national conference on emerging trends in mechanical engineering 2K13, pp.357-362, 119.18.60.68, 2013.
P. C. Okafor, E. E. Ebenso, U. J. Ekpe, “Azadirachta Indica extracts as corrosion inhibitor for mild steel in acid medium†Int. J. Electrochem. Sci., 5, pp.978-993, 2010.
P. Bothi, R. Afidah Rahim, H. Osman, K. Awang, “Inhibitive effect of Xylopia ferruginea extract on the corrosion of mild steel in 1M HCl medium†Int. J of mineral, metallurgy and materials,18 (4), pp.413-418, 2011.
A. Eid Al-Rawajfeh, U. Al Qawabeha “Influence of diamond pressing process on corrosion resistance in steelâ€, Materials Science and Engineering A, 456(1-2), 133.137. DOI: /10.1016/j.msea.2007.01.070.2007
U. J Ekpe, U. J Ubok, B. I. Ita, O. E. Offiong, E. E. Ebenso, “Inhibitory action of methyl and phenyl thiosemicarbazone derivatives on the corrosion of mild steel in hydrochloric acid†Mater. Chem. Phys. 40, pp 87-93, 1995.
S. A. Umoren, I. B. Obot, E. E. Ebenso, N. O. Obi-Egbedi, Synergistic Inhibition between Naturally Occurring Exudate Gum and Halide Ions on the Corrosion of Mild Steel in Acidic Mediumâ€Int. J. Electrochem. Sci., 3,pp. 1029-1034, 2008.
U. R. Evans, “Behaviour of Metals in Nitric Acid†in Trans. Faraday Society, 40, pp. 120-130, 1944.
H. H. Uhlig, Corrosion Handbook, The Electrochemical Society, New York, NY, pp. 133-134, 1948
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