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Corrosion inhibition of iron in hydrochloric acid solution by jojoba oil

A. Chetouani (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)
M. Benkaddour (Laboratoire de Chimie des Eaux et Corrosion, Faculté des Sciences, Oujda, Morocco)

Pigment & Resin Technology

ISSN: 0369-9420

Article publication date: 1 February 2004

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Abstract

The influence of addition of the natural material, jojoba oil, on the corrosion of iron in molar hydrochloric acid had been studied using weight loss measurement and electrochemical polarisation methods. It was found that the corrosion rate was significantly reduced in the presence of jojoba. It was also found that the corrosion inhibition efficiency increased with the concentration of the jojoba oil to attain a 100 per cent inhibition at 0.515 g/l of jojoba oil, indicating that jojoba oil was an excellent corrosion inhibitor. The effect of temperature on the corrosion behaviour of iron indicated that the inhibition efficiency of jojoba oil decreased very slightly with the rise of temperature. It was found that the adsorption of jojoba oil on the iron, which followed the Frumkin isotherm, was the main cause to the corrosion inhibition.

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Citation

Chetouani, A., Hammouti, B. and Benkaddour, M. (2004), "Corrosion inhibition of iron in hydrochloric acid solution by jojoba oil", Pigment & Resin Technology, Vol. 33 No. 1, pp. 26-31. https://doi.org/10.1108/03699420410512077

Publisher

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Emerald Group Publishing Limited

Copyright © 2004, Emerald Group Publishing Limited