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A study of anti‐corrosive effects of Artemisia oil on steel

A. Bouyanzer (Laboratoire de Chimie des Eaux et Corrosion, Faculté des Sciences, Oujda, Morocco)
B. Hammouti (Laboratoire de Chimie des Eaux et Corrosion, Faculté des Sciences, Oujda, Morocco)

Pigment & Resin Technology

ISSN: 0369-9420

Article publication date: 1 October 2004

Abstract

The effects of natural Artemisia oil on the corrosion of steel in molar hydrochloric acid were studied by the measurements of weight loss, electrochemical and EIS polarisation. The results obtained revealed that Artemisia oil reduced the rate of corrosion. The corrosion inhibition efficiency increased with the increase of inhibitor concentration. Potentiodynamic polarisation studies clearly revealed that the presence of the natural Artemisia oil did not alter the mechanism of the hydrogen evolution reaction and acted essentially as a cathodic inhibitor. Good agreement between gravimetric and electrochemical polarisation results was noted. The effect of temperature on the corrosion behaviour of steel in 1M HCl, with and without the oil in the temperature range of 308‐353 K, indicated that inhibition efficiency increased with temperature. The adsorption of Artemisia oil on the steel is followed by Frumkin adsorption isotherm.

Keywords

Citation

Bouyanzer, A. and Hammouti, B. (2004), "A study of anti‐corrosive effects of Artemisia oil on steel", Pigment & Resin Technology, Vol. 33 No. 5, pp. 287-292. https://doi.org/10.1108/03699420410560489

Publisher

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Emerald Group Publishing Limited

Copyright © 2004, Emerald Group Publishing Limited