Asian Journal of Research in Chemistry
  • Year: 2010
  • Volume: 3
  • Issue: 3

Inhibition of Corrosion of Mild Steel in 0.5 M H2SO4 by Tectona grandis Leaves

  • Author:
  • N. Kasthuri1, R. Saratha2,, R. Meenakshi2, H.N. Meenakshi2
  • Total Page Count: 3
  • Page Number: 588 to 590

1Department of Chemistry, Sengunthar College of Engineering for Women, Tiruchengode, India

2Department of Chemistry, Avinashilingam University for Women, Coimbatore, India

*Corresponding Author E-mail: Saratha63@gmail.com

Online published on 13 March, 2013.

Abstract

The inhibition efficiency of acid extract of leaves of Tectona grandis [TG] on the corrosion of mild steel in 0.5 M H2SO4 was investigated by weight loss measurements and polarisation studies. The results obtained show that the extract could serve as an effective inhibitor for the corrosion of mild steel in H2SO4 media. Inhibition was found to increase with increasing concentration of the plant extract. Polarization curves revealed that this inhibitor acts as a mixed type inhibitor. The inhibition efficiency of up to 97.46% at 2.5%(v/v) concentration of the extract was obtained.

Keywords

Tectona grandis (TG), Corrosion inhibitor, Mild steel, acid medium