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Corrosion Inhibition of Mild Steel in Sulphuric Acid (H2SO4) Medium of the Stem Extract of Tetrapleura Tetraptera
American Journal of Applied Chemistry
Volume 7, Issue 3, June 2019, Pages: 87-94
Received: Mar. 26, 2019; Accepted: May 9, 2019; Published: Jun. 17, 2019
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Rita Oghenenyerhovwo Ididama, Department of Pure and Industrial Chemistry, Nnamdi Azikiwe University, Awka, Nigeria
Vincent Ishmael Egbulefu Ajiwe, Department of Pure and Industrial Chemistry, Nnamdi Azikiwe University, Awka, Nigeria
Chingbudun Nduadim Emeruwa, Department of Pure and Industrial Chemistry, Nnamdi Azikiwe University, Awka, Nigeria
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The inhibitive action of stem extracts of Tetrapleura tetraptera on mild steel corrosion in 1.0M & 5.0M H2SO4 solutions was studied. The stem were dried under room temperature and mechanically ground into powder form. 100g of the stem powder were extracted with a mixture of methanol/water in the ratio of 4:1 using a Soxhlet extractor for 24 hours. The extracts were distilled at 60°C in a water bath until almost the entire methanol evaporated. 4.0g of the methanol extracts were digested in 1000ml of 1M H2SO4 and 5M H2SO4 and left to cool for 24 hours and the resulting solution was filtered and stored in a 1.0L volumetric flask. The stem extracts test solutions were prepared from the stock solution by dissolving 0.5g/L, 1.0g/L, 2.0g/L and 4.0g/L of the extracts in 1L solution of 1M H2SO4 and 5M H2SO4. Phytochemical analysis was carried out and the result showed the presence of some secondary metabolites such as alkoliods, flavonoids, steroids, saponins and tannins. Weight loss (gravimetric) and gasometric techniques were used to determine the inhibition action of the stem of Terapleaura tetraptera. The results showed that stem of Tetrapleura tetraptera can function as good corrosion inhibitor in acid medium. Inhibition efficiencies (%I) of the stem of Tetrapleura tetraptera extracts was found to reach 73.69% & 50.39% for 1.0M H2SO4 while for 5.0M was 83.31% & 79.54% for gravimetric and gasometric analyses respectively. The corrosion inhibition efficiency increased with increase in the concentration of the extracts and decreased with the increase in time and temperature. The corrosion inhibition efficiency exhibited by the Tetrapleura tetraptera stem extracts is attributed to the stronger adsorption of the phytochemicals present in the plant extracts unto the mild steel. The mechanism of adsorption proposed for the Tetrapleura tetraptera stem extracts is physical adsorption. The corrosion inhibition of the stem of Tetrapleura tetraptera extracts followed Langmuir, Tempkin and Freundlich adsorption isotherm for both 1.0M & 5.0M H2SO4.
Mild Steel, Corrosion, Sulphuric Acid, Tetrapleura Tetraptera Stem Extract, Gravimetric, Gasometric
To cite this article
Rita Oghenenyerhovwo Ididama, Vincent Ishmael Egbulefu Ajiwe, Chingbudun Nduadim Emeruwa, Corrosion Inhibition of Mild Steel in Sulphuric Acid (H2SO4) Medium of the Stem Extract of Tetrapleura Tetraptera, American Journal of Applied Chemistry. Vol. 7, No. 3, 2019, pp. 87-94. doi: 10.11648/j.ajac.20190703.12
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This article is an open access article distributed under the Creative Commons Attribution License ( which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Alaneme, K. K, Olusegun, S. J. and Adelowo, O. T. (2016). Corrosion inhibition and adsorption mechanism studies of HunteriaUmbellataseed husk extracts on mild steel immersed in acidic solutions, Alexandria Engineering journal, 55 (1): 673-681.
Fiori-Bimbi, M. V., Alvarez, P. E., Vaca, H. and Gerrasi, C. A. (2015). Corrosion inhibition of mild steel in Hcl solution by pectin, Corrosion science, 92: 192-199.
Roy, P., Karfa. P., Adhikari, U. and Sukul, D. (2014). Corrosion inhibition of mild steel in acidic medium by polyacrylamide grafted Guar gum with various grafting percentage: effect on intramolecular synergism, corrosion science, 88: 246-253.
Sigircik, G., Tiiken, T. and Erbil, M. (2016). Assessment of the inhibition efficiency of 3,4-diaminobenzonitile against the corrosion of steel, corrosion science, 102: 437-445.
Krishnaveni, K. and Ravichandran, J. (2014). Effect of aqueous extract of leaves of morindatinctoria on corrosion inhibition of aluminium surface in Hcl medium, Transactions of nonferrous metals society of china, 24 (8): 2714-2712.
Essien, E. U., Izunwane, B. C., Aremu, C. V. and Eka, O. U. (1995). Significance for humans of the nutrient contents of the dry fruit of Tetrapleuratetraptera, plant food and animal nutrition, 45: 47-51.
Okwu, D. E. (2003). The potentials of Ocimumgratissimum, Pargulariaextensa and Tetrapleuratetrapteraas spice and flavouring agent. Nigeria Agricultural Journal, 35: 143-148.
Eddy, N. O., and Ebenso, E. E. (2010) Adsorption and quantum chemical studies on cloxacilin and halide for the corrosion of mild steel in acidic medium, International Journal of Electrochemical Science, 5: 731-750.
Umeron, S. A., Eduok, U. M., Solomon, M. M. and Udoh, A. P. (2011). Corrosion inhibition by leaves and stem extracxts of sidaacuta of mild steel in 1M H2SO4 solutions investigated by chemical and spectroscopic technique, Arabian journal of chemistry, dio 10.1016.
Kumar, G. S., Jayaveera, K. N., Kumar, C. K. A., Sanjay, U. P., Swamy, B. M. V. and Kumar, D. V. K. (2007) Antimicrobial effects of Indian medicinal plants against acne-inducing bacteria, Tropical Journal of harmaceutical Research, 6: 717-723.
Parekh, J., and Chanda, S. V. (2007) In vitro antimicrobial activity and phytochemical analysis of some Indian medicinal plants, Turkish Journal of Biology, 31: 53-58.
Onwukaeme, D. N., Ikuegbvweha, T. B., and Asonye, C. C. (2007) Evaluation of phytochemical constituents, antibacterial activities and effect of exudates of PycanthusangolensisWeld Warb (Myristicaceae) on corneal ulcers in rabbits, Tropical Journal of Pharmaceutical Research, 6: 725-730.
Okafor, P. C. and Ebenso, E. E. (2007). Inhibitory action of C. papaya extracts on the corrosion of mild steel Pigment & Resin technology, 36 (3): 134-140.
Marko Chigondo and Fidelis Chigondo (2016). Recent natural corrosion inhibitor for mild steel, an overview journal of chemistry.
Okafor, P. C., Ebenso, E. E., and Ekpe, U. J. (2010). Azardirachtaindica extracts as corrosion inhibition of mild steel in acid medium. International journal Electrochemical science, 5: 978-993.
Bentiss, F., Jama, C., Mernari, B., El Attari, H., El Kadi, L., Lebrini, M., Traisnel and Lagrenee, M. (2009). Corrosion control of mild steel using 3,5-bis(4-methoxyphenyl)-4-amino-1,2,4-triazole in normal hydrochloric acid medium, coorosion science, 51: 1628-1635.
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