KINETICS STUDY OF CORROSION OF MILD STEEL IN SULPHURIC ACID USING MUSA SAPIENTUM PEELS EXTRACT AS INHIBITOR

  • L. Salami
  • M. Umar
Keywords: Kinetics, corrosion, mild steel, sulphuric acid and Musa Sapientum extract.

Abstract

The use of inhibitor is a way of minimizing the rate of corrosion of materials. This work was carried
out to study the kinetics of corrosion of mild steel in sulphuric acid using Musa Sapientum peels
extract as inhibitor. The rates of corrosion of the mild steel were computed using the method of
Bradford. The results of the study revealed that the weight loss is inversely proportional to the
concentration of the inhibitor. The concentration of inhibitor is also inversely proportional to the rate
of corrosion of mild steel but the rate of corrosion of the mild steel is directly proportional to the
weight loss of mild steel. The kinetics of mild steel in sulphuric acid using Musa Sapientum peels
extract inhibitor followed a first order with rate constant of 4.874 g/mm2 yr. The half life of the mild
steel was found to be 0.142 mm2 yr/g. This study has shown that Musa Sapientum peels extract can be
used as corrosion inhibitor for mild steel in sulphuric acid and the kinetics model for the process is
r = 4.874C .

Author Biographies

L. Salami

Environmental Engineering Research Unit, Department of Chemical and Polymer Engineering, Lagos State University, Epe, Lagos State, Nigeria.

M. Umar

Department of Chemical Engineering, Federal University of Technology, Minna, Niger State, Nigeria.

Published
2019-07-16