Studies on Inhibition of Acid Corrosion of Mild Steel by Terminalia catappa (Tropical Almond) Leaves

V.G. Vasudha¹ and R. Saratha²

¹Department of Chemistry, Nirmala College, Coimbatore, Tamilnadu (India).

²Department of Chemistry, Avinashilingam University for Women, Coimbatore (India).

ABSTRACT:

Acid extract of Terminalia catappa (Tropical almond / badam) leaves is investigated as a cheap and eco-friendly corrosion inhibitor for mild steel in 1N HCl medium by weight loss, polarization, FTIR and scanning electron microscope studies. Studies carried out using various concentrations of inhibitor for different immersion times indicate Terminalia catappa to be a good mixed type corrosion inhibitor for mild steel. The inhibition efficiency was found to increase with inhibitor concentration. Inhibition efficiency of 97% at 2% v/v inhibitor concentration was obtained.

KEYWORDS:

Corrosion inhibition; Mild steel; Acid medium; Terminalia catappa

Download this article as: 

Copy the following to cite this article: Vasudha V. G, Saratha R. Studies on Inhibition of Acid Corrosion of Mild Steel by Terminalia catappa (Tropical Almond) Leaves. Orient J Chem 2011;27(3).

Copy the following to cite this URL: Vasudha V. G, Saratha R. Studies on Inhibition of Acid Corrosion of Mild Steel by Terminalia catappa (Tropical Almond) Leaves. Orient J Chem 2011;27(3). Available from: http://www.orientjchem.org/?p=24590