Study of Jatropha Curcas Extract as a Corrosion Inhibitor in Acidic Medium on Mild Steel by Weight Loss and Potentiodynamic Methods

  • Dipak Kumar Gupta Tri-Chandra Multiple Campus, Tribhuvan University, Kathmandu
  • KM Anita Kafle Tri-Chandra Multiple Campus, Tribhuvan University, Kathmandu
  • Anju Kumari Das Central Department of Chemistry, Tribhuvan University, Kirtipur Kathmandu
  • Shova Neupane Centre National de la Recherche Scientifique (CNRS), Paris
  • Anita Ghimire Central Department of Chemistry, Tribhuvan University, Kathmandu
  • Braham Dev Yadav R.R.M. Campus, Tribhuvan University, Janakpur
  • Yogesh Chaudhari Central Department of Chemistry, Tribhuvan University, Kathmandu
  • Nabin Karki Central Department of Chemistry, Tribhuvan University, Kirtipur Kathmandu
  • Amar Prasad Yadav Central Department of Chemistry, Tribhuvan University, Kirtipur Kathmandu
Keywords: Corrosion inhibition, green inhibitor, potentiodynamic polarization, mild steel, weight loss

Abstract

The corrosion inhibition properties of methanol extract of Jatropha curcas (JC) were investigated for mild steel (MS) in acidic medium using weight loss and potentiodynamic methods. Corrosion inhibition of MS in 1MH2SO4 was studied in the absence and presence of various concentrations of the methanolic extract of Jatropha curcas barks. The results showed an increase in corrosion inhibition with increasing concentration of the extract. The inhibition efficiency of 1000 ppm JC extract from the weight loss and potentiodynamic polarization methods were approximately 92.0% after 24 hours immersion in the acidic solution. Open circuit potential (OCP) and potentiodynamic polarization measurements showed that the JC extract acts as a mixed-type inhibitor.

Downloads

Download data is not yet available.
Abstract
38
pdf
43
Published
2020-08-05
How to Cite
Gupta, D., Kafle, K., Das, A., Neupane, S., Ghimire, A., Yadav, B., Chaudhari, Y., Karki, N., & Yadav, A. (2020). Study of Jatropha Curcas Extract as a Corrosion Inhibitor in Acidic Medium on Mild Steel by Weight Loss and Potentiodynamic Methods. Journal of Nepal Chemical Society, 41(1), 87-93. https://doi.org/10.3126/jncs.v41i1.30493
Section
Articles