Corrosion in industries and all other ways of life must be avoided as its consequential effects cost heavy loss to economy and lives. There are several conventional methods of converting corrosion such as coating but with limitations of challenges especially to health and high cost of application. Recent researches have focus on using natural organic materials such as vegetable seeds as inhibitors for converting corrosion especially in food processing industries. In this work, the potentials of shea butter from the nut of African shea tree (vitellariaparadoxa) as corrosion inhibitor for mild steel in different media was investigated. Six (6) corrosion coupons were prepared from mild steel sheet for the experiment. Three (3) of the samples were covered with shea butter and immersed separately in distilled water, concentrated and diluted HCL, while the remaining three (3) samples were separately immersed in similar environments but not coated with sheabutter. The corrosion effects on all the samples were studied using weight loss criteria. The result of the experiment indicated the variation in weight loss of shea butter coated mild steel for both concentrated and diluted HCL as compared to their initial weights. The weight loss of shea butter coated mild steel with concentrated HCL varies significantly with the day’s interval as compared to the weight of mild steel with diluted HCL that had little or no change in weight. Concentrated HCL with shea butter coated steel readily corrode than in dilute HCL which showed no sign of corrosion. Based on the results, it can be concluded that shea butter can conveniently be used as inhibitor for mild steel.
Weight loss, Distilled water, Mild steel, Corrosion inhibitor, Extracts
M. A. Bawa , O. B. Umaru , A. D. Yusuf , A. J. Omonijo "Inhibitive Effect of Shea Butter on the Corrosion of Mild Steel" Iconic Research And Engineering Journals Volume 3 Issue 12 2020 Page 87-94
M. A. Bawa , O. B. Umaru , A. D. Yusuf , A. J. Omonijo "Inhibitive Effect of Shea Butter on the Corrosion of Mild Steel" Iconic Research And Engineering Journals, 3(12)