Title of article
Corrosion Inhibition of Mild Steel by Ethanol Extract of Bitter Leaf (Vernonia Amygdalina): Effects of Inhibitor Concentration and Time
Author/Authors
Udoisoh ، Moses Department of Mechanical Engineering - University of Port Harcourt , Ajoku ، Esther Department of Science Laboratory Technology Opt (Microbiology/Virology) - Federal University of Technology , Sherif ، Adeyemi Department of Materials and Metallurgical Engineering - University of Ilorin , Chimezie ، Nathaniel Department of Environmental Management - Federal University of Technology , Ifeanyi-Nze ، Favour Department of Chemistry - University of Benin , Akemu ، Isaac Department of Chemical Engineering - Federal University of Petroleum Resources Effurun , Akpowu ، George Department of Chemistry - Federal University of Agriculture , Adache ، Emmanuella Department of Pure Chemistry - Usmanu Danfodiyo University Sokoto , Ajayi ، Moyosore Department of Chemistry - Olabisi Onabanjo University , Omolusi ، Ayobami Department of Chemistry - University of Ibadan , Awe ، Rebecca Department of Chemical Engineering - Ladoke Akintola University of Technology , Omoseyindemi ، Oluwaseyi Department of Pharmacology - University of Lagos , Zoum ، Fon Department of Mining and Mineral Engineering - University of Bamenda , Afiari ، Olisaemeka Department of Metallurgical engineering - Yaba college of technology , Ozoude ، Chinemerem Department of Metallurgical and Materials Engineering - University of Nigeria , Aiso ، Stephen Department of Chemical Engineering - University of Lagos , Abdullahi ، Kasim Department of Environmental Management Technology - Federal University of Technology Owerri , Odukoya ، AbdulAzeez Department of Biochemistry - University of Lagos , Ojo ، Idowu Department of Chemical Engineering - Ladoke Akintola university of technology
From page
225
To page
238
Abstract
The aim of this study was to test the performance of Bitter Leaf (Vernonia Amygdalina) ethanol extract as a corrosion inhibitor for mild steel in 1.5 M H2SO4 solution. The study measured the weight loss and corrosion rate of mild steel under different inhibitor concentrations (0.25-1.50 g/ml) and exposure times (1-5 days). The findings indicated that the inhibitor concentration had a positive effect on reducing the weight loss and corrosion rate of mild steel, showing a high inhibition efficiency. On the other hand, the medium without inhibitor had more weight loss and corrosion rate. The study also observed that the weight loss and corrosion rate increased slightly as the exposure time increased, implying that the inhibitor became less effective over time and needed to be regularly replaced. The study used the Langmuir adsorption isotherm model to describe the interaction between the inhibitor molecules and the metal surface. The study demonstrated the corrosion inhibition process of bitter leaf extract on mild steel and emphasized the need to optimize the inhibitor concentration and check its effectiveness over time for corrosion prevention applications.
Keywords
corrosion , Mild steel , ethanol extract , Bitter Leaf , Inhibition
Journal title
Progress in Chemical and Biochemical Research
Journal title
Progress in Chemical and Biochemical Research
Record number
2768495
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