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E-Journal of Chemistry
Volume 8, Issue 2, Pages 685-688
http://dx.doi.org/10.1155/2011/979542

Inhibition of Mild Steel Corrosion in Acidic Medium by Aqueous Extract of Tridax procumbens L.

G. Ilayaraja, A. R. Sasieekhumar, and P. Dhanakodi

Department of Chemistry, Mahendra Engineering College, Namakkal-637 503, India

Received 14 August 2010; Accepted 8 November 2010

Copyright © 2011 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The inhibition efficiency (IE) of an aqueous extract of Tridax procumbens L. in controlling corrosion of mild steel has been investigated by weight loss method in the absence and presence of corrosion inhibitor at different time interval at room temperature. The result showed that the corrosion inhibition efficiency of these compounds was found to vary with different time interval and different acid concentration. Also, it was found that the corrosion inhibition behavior of Tridax procumbens L. is greater in sulphuric acid than hydrochloric acid medium. So Tridax procumbens L. can be used as a good inhibitor for preventing mild steel material.