Phytochemical Screening and Corrosion Inhibition of the Ethanolic Leave Extracts of Gardenia aqualla Stapf & Hutch In 1M H2SO4 Acid Solution
American Journal of Applied Chemistry
Volume 6, Issue 1, February 2018, Pages: 1-5
Received: Oct. 5, 2017; Accepted: Oct. 18, 2017; Published: Dec. 14, 2017
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Authors
Opara Chinonso Ivan, Department of Chemistry, Modibbo Adama University of Technology, Yola, Nigeria
Louis Hitler, Department of Pure and Applied Chemistry, University of Calabar, Calabar, Nigeria; CAS Key Laboratory for Nanosystem and Hierarchical Fabrication, CAS Centre For Excellence in Nanoscience, National Centre for Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, China
Japari Joseph, Department of Chemistry, Modibbo Adama University of Technology, Yola, Nigeria
Oyebanji Oyetola, Department of Botany, University of Lagos, Lagos, Nigeria; Kunming Institute of Botany, University of Chinese Academy of Sciences, Kunming, China
Akakuru Ozioma Udochukwu, Department of Pure and Applied Chemistry, University of Calabar, Calabar, Nigeria
Tonny Nyong’a Maraga, Department of Botany, Jomo Kenyatta University of Agriculture and Technology, Nairobi, Kenya
Pigweh Amos Isa, Department of Chemistry, Modibbo Adama University of Technology, Yola, Nigeria
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Abstract
The main objective of this study is to investigate the corrosion inhibition properties of Gardenia aqualla leaf extract on mild steel using weight determination loss method. The corrosion of mild steel was investigated at different concentrations of Gardenia aqualla at temperatures of 303, 313 and 323 K. G. aqualla inhibit corrosion rate of mild steel from 62.4 mm/yr to 6.5 mm/yr, 91.6 mm/yr to 16.6 mm/yr and 113.8 mm/yr to 28.4 mm/yr at 303, 313, and 323 K respectively. The optimum obtained yield in the inhibition efficiency is from 63.8% to 89.5%, 52.5% to 81.9% and 39% to 75% for the various temperatures respectively after an interval of 3 days being in contact in aqueous solution. Langmuir isotherm confirmed that physisorption occurred and it was found that inhibition occurred through adsorption of the constituents present in the leaf of G. aqualla obtained by phytochemical screening.
Keywords
Mild Steel, Corrosion Inhibition, Gardenia aqualla, Adsorption Mechanism
To cite this article
Opara Chinonso Ivan, Louis Hitler, Japari Joseph, Oyebanji Oyetola, Akakuru Ozioma Udochukwu, Tonny Nyong’a Maraga, Pigweh Amos Isa, Phytochemical Screening and Corrosion Inhibition of the Ethanolic Leave Extracts of Gardenia aqualla Stapf & Hutch In 1M H2SO4 Acid Solution, American Journal of Applied Chemistry. Vol. 6, No. 1, 2018, pp. 1-5. doi: 10.11648/j.ajac.20180601.11
Copyright
Copyright © 2017 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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