Joint effect of halides and Ethanol Extract of Sorghum on the Inhibition of the Corrosion of Aluminum in HCl


  • Richard Alexis Ukpe Federal University, Otuoke, Bayelsa State, Nigeria


Corrosion, aluminum, inhibition, ethanol extract of sorghum waste, gravimetric and gasoetric investiagtion


Communication in Physical Sciences 2019, 4(2):141-150

Received 12 September 2019/Accepted 22 November 2019

In order to applied the principle of resource recovery to the management of sorghum waste from a brewery industry in Nigeria, ethanol extract of the waste was investigated for their corrosion inhibition efficiency towards aluminum in solution of HCl . Weight loss and gasometric methods were used for the study. The results obtained indicated that ethanol extract of sorghum waste inhibited the corrosion of aluminum in solution of HCl with maximum inhibition efficiency of 44.99, 39.95, 38.95 and 38.42% at 303, 313, 323 and 333 K respectively. However, through synergistic combination of KBr, KI and KCl, the inhibition efficiencies at 303 K was increase to 78.59, 54.22 and 79.04% respectively. Maximum efficiency obtained from gasometric experiment was 79.32%. The inhibitor acted as adsorption inhibitor and its adsorption behaviour obeyed Temkin, Freundlich, El awardy et al and Dubinin-Raduskevich isotherm. Data obtained with respect to trends of variation of inhibition efficiency with temperature, calculated activation and free energies as well as thermodynamic parameters confirmed that the adsorption of the inhibitor is spontaneous, exothermic and is consistent with the mechanism of charge transfer from charged inhibitor to charged metal surface, which favour physical adsorption


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Abd El Rehim, S. S., Sayyah, S. M., El-Deeb, M. M., Kamal, S. M. & Azooz, R. E. (2016). Adsorption and corrosion inhibitive properties of P(2-aminobenzothiazole) on mild steel in hydrochloric acid media. International Journal of Industrial Chemistry, 7, pp. 39–52.

Agrawal, Y. K., Talati, J. D., Shah, M. D, Desai, M. N & Shah, N. K. (2003). Schiff bases of ethylenediamine as corrosion inhibitors of zinc in sulphuric acid. Corrosion Science, 46, pp. 633-651.

Ameh, P. O.& Eddy, N. O. (2018a). Theoretical and experimental investigations of the corrosion Inhibition action of Piliostigma thonningii extract on mild steel in acidic medium. Communication in Physical Sciences 3, 2, pp. 27-42.

Ameh, P. O.& Eddy, N. O. (2018b). Experimental and Computational cchemistry studies on the iinhibition eefficiency of phthalic acid (PHA) for the corrosion of aluminum in hydrochloric and tetraoxosulphate (VI) acids. Protection of Metals and Physical Chemistry of Surfaces, 54, pp. 1169–1181

Awe, F. E., Abdulwahab, M. & Otaru, H. A. (2019). Adsorptive studies of the inhibitive properties of ethanolic extracts of Parinari polyandra on mild steel in acidic media. Communication in Physical Sciences, 4, 1, 49-57.

Eddy, N. O. & Ebenso, E. E. (2008). Adsorption and inhibitive properties of ethanol extract of Musa sapientum peels as a green corrosion inhibitor for mild steel in H2SO4. African Journal of Pure and Applied Chemistry, 2, 6, pp. 1-9.

Eddy, N. O. & Odiongenyi, A. O. (2010). Corrosion inhibition and adsorption properties of ethanol extract of Heinsia crinata on mild steel in H2SO4. Pigment and Resin Technology, 36, 5, 288-295.

Eddy, N. O. & Odoemelam, S. A. (2008). Inhibition of the corrosion of mild steel in acidic medium by penicillin V potassium. Advances in Natural and Applied Sciences, 2, 3, pp. 225-232.

Eddy, N. O., Ameh, P. O., Gimba, C. E & Ebenso, E. E. (2013). Rheological Modeling, surface morphology and physicochemical properties of Anogeissus leiocarpus gum. Asian Journal of chemistry, 25, 3, pp. 1666-167283.

Eddy, N. O., Ameh, P., Gimba, C. E. & Ebenso, E. E. (2011a). GCMS studies on Anogessus leocarpus (AL) gum and their corrosion inhibition potentials for mild steel in 0.1 M HCl. International Journal of Electrochemical Sciences, 6, pp. 5815-5829.

Eddy, N. O., Ekwumemgbo, P. & Odoemelam, S. A. (2008). Inhibition of the corrosion of mild steel in H2SO4 by 5-amino-1-cyclopropyl-7-[(3R, 5S) 3, 5-dimethylpiperazin-1-yl]-6,8-difluoro-4-oxo-uinoline-3-carboxylicacid

(ACPDQC). International Journal of Physical Sciences, 3, 11, pp. 275-280.

Eddy, N. O., Ekwumengbo, P. A. & Mamza, P. A. P. (2009a). Ethanol extract of Terminalia catappa as a green inhibitor for the corrosion of mild steel in H2SO4. Green Chemistry Letters and Review 2, 4, pp. 223-231.

Eddy, N. O., Ita, B. I., Dodo, S. N. & Paul, E. D. (2011b). Inhibitive and adsorption properties of ethanol extract of Hibiscus sabdariffa calyx for the corrosion of mild steel In 0.1 M HCl. Green Chemistry Letters and Review, 5, 1, pp. 43-53.

Eddy, N. O., Momoh-Yahaya, H. & Oguzie, E. E.(2015). Theoretical and experimental studies on the corrosion inhibition potentials of some purines for aluminum in 0.1 M HCl. Journal of Advanced Research 6: 203-216.

Eddy, N. O., Odoemelam, S. A. & Odiongenyi, A. O. (2008). Ethanol extract of Musa acuminate peel as an eco-friendly inhibitor for the corrosion of mild steel in H2SO4. Advances in Natural and Applied Sciences, 2, 1, pp. 35-42.

Ismail, M., Abdulraham, A. S., & Hussain, M. S. (2011). solid waste as environmental benign corrosion inhibitors in acid medium. International Journal of Engineering Science and Technology, 3,2 , pp. 1742- 1748.

Jovancicervic, V., Ramachadran, S. & Prince, P. (1999). Inhibition of carbon (IV) oxide corrosion of mild steel by imidazoline and their precursors. National Agency for Corrosion Engineering Journal, . 55, 5, pp. 449-453.

Khadom, A. A. & Abod, B. M. (2016). Mathematical model for galvanic corrosion of steel-copper couple in petroleum waste water in presence of friendly corrosion inhibitor. Journal of Applied Research and Technology, 15, pp. 14-20.

Matosa, L. A., Taborda, M. C., Banczek, E. do P., D;Ella, E. & Rodrigues, P, R. P. (2019). Aqueous agro-industrial waste as corrosion inhibitor for stainless steel AISI 304 in acidic media, Materials Research, 22, 5, DOI:

Ngobiri, N. O., Oguzie, E. E., Li, Y., Liu, L., Oforka, N. C. & Akaranta, O. (2015). Eco-Friendly Corrosion Inhibition of pipeline steel using Brassica olerace¸International Journal of Corrosion Science,

Odoemelam, S. A., Ogoko, E. C., Ita, B. I. & Eddy, N. O. (2009). Inhibition of the corrosion of zinc in H2SO4 By 9-deoxy-9a-aza9a-methyl-9a-homoerythromycin A (azithromycin). Portugaliae Electrochimica acta, 27, 1, pp. 57-68.

Ogoko, E. C., Odoemelam, S. A., Ita, B. I. and Eddy, N. O. (2009b). Adsorption and inhibitive properties of clarithromycin for the corrosion of Zn in 0.01 to 0.05 M H2SO4. Portugaliae Electrochimica. Acta 27(6): 713-724.

Papoola, L. T. (2019). Organic green corrosion inhibitors (OGCIs): a critical review. Corrosion Review, 37, 2. I:

Stango, S. A. & Vijayalakshm, U. (2018) Studies on corrosion inhibitory effect and adsorption behavior of waste materials on mild steel in acidic medium. Journal of Asian Ceramic Societies, 6:1, 20-29, DOI: 10.1080/21870764.2018.1439608

Ukpe, R. A. (2019). Joint Effect of Ethanol Extract of Orange Peel and halides on the Inhibition of the Corrosion of Aluminium in 0.1 M HCl: An approach to Resource Recovery. Communication in Physical Sciences, 4, 2, 118-132.

Ukpe, R. A., Odoemelam, S. A., Odiongenyi, A. O. & Eddy, N. O. (2014). Inhibition of the corrosion of aluminium in 0.1 M HCl by ethanol extract of mango peel waste. Journal of Bioprocessing and Chemical Engineering, 2, pp. 2348-3768.

Ye, Y., Yang, D. & Chen, H. (2019). A green and effective corrosion inhibitor of functionalized carbon dots. Journal of Materials Science and Technology, 35, 10, pp. 2243-2253.