Bark Extract of <i>Lantana camara</i> in 1M HCl as Green Corrosion Inhibitor for Mild Steel

  • Prem Raj Shrestha Tribhuvan University
  • Hari Bhakta Oli Tribhuvan University
  • Bishal Thapa Tribhuvan University
  • Yogesh Chaudhary Tribhuvan University
  • Dipak K. Gupta Tribhuvan University
  • Anju Kumari Das Tribhuvan University
  • Krishna Badan Nakarmi Tribhuvan University
  • Sanjay Singh Tribhuvan University
  • Nabin Karki Tribhuvan University
  • Amar Prasad Yadav Tribhuvan University

Abstract

Lantana camara, an invasive species that adversely affects habitant, bioregions and environment has been studied as corrosion inhibitor. Methanolic extract of barks of Lantana camara in 1 M hydrochloric acid was tested as corrosion inhibitor on mild steel using potentiodynamic polarization technique. The corrosion inhibition efficiency of extract varied with concentration of extract and immersion of time. The inhibition was found to increase with increase in concentration of the extract. The polarization behavior of mild steel revealed that maximum inhibition efficiency is 97.33 % and 89.93 % respectively in the 1000 and 200 ppm concentration of the inhibitor respectively. The results showed that the extract of the barks of Lantana camara served as a mixed type inhibitor.

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Author Biographies

Prem Raj Shrestha

Trichandra Multiple Campus, Tribhuvan University, Kathmandu, Nepal

Hari Bhakta Oli

Amrit Campus, Tribhuvan University, Kathmandu, Nepal

Bishal Thapa

Trichandra Multiple Campus, Tribhuvan University, Kathmandu, Nepal

Yogesh Chaudhary

Central Department of Chemistry, Tribhuvan University, Kathmandu, Nepal

Dipak K. Gupta

Trichandra Multiple Campus, Tribhuvan University, Kathmandu, Nepal

Central Department of Chemistry, Tribhuvan University, Kathmandu, Nepal

Anju Kumari Das

Amrit Campus, Tribhuvan University, Kathmandu, Nepal

Central Department of Chemistry, Tribhuvan University, Kathmandu, Nepal

Krishna Badan Nakarmi

Central Department of Chemistry, Tribhuvan University, Kathmandu, Nepal

Patan Multiple Campus, Tribhuvan University, Laliltpur, Nepal

Sanjay Singh

Amrit Campus, Tribhuvan University, Kathmandu, Nepal

Central Department of Chemistry, Tribhuvan University, Kathmandu, Nepal

Nabin Karki

Central Department of Chemistry, Tribhuvan University, Kathmandu, Nepal

Bhaktapur Multiple Campus, Tribhuvan University, Bhaktapur, Nepal

Amar Prasad Yadav

Central Department of Chemistry, Tribhuvan University, Kathmandu, Nepal

Published In
Vol 23 No 4, Aug 8, 2019
How to Cite
[1]
P. R. Shrestha, “Bark Extract of <i>Lantana camara</i&gt; in 1M HCl as Green Corrosion Inhibitor for Mild Steel”, Eng. J., vol. 23, no. 4, pp. 205-211, Aug. 2019.