Inhibition of the corrosion of steel in 1 M HCl by eugenol derivatives

The effect of eugenol (Eug) and its derivative acetyleugenol (AcEug) extracted from the nail of giroflier on the corrosion of steel in molar hydrochloric acid has been studied using weight loss measurements, electrochemical polarisation and EIS methods. The naturally substances reduce the corrosion...

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Bibliographic Details
Published in:Applied surface science 2005-06, Vol.246 (1), p.199-206
Main Authors: Chaieb, E., Bouyanzer, A., Hammouti, B., Benkaddour, M.
Format: Article
Language:English
Subjects:
Adsorption
Applied sciences
Corrosion
Corrosion prevention
Corrosion protection
Cross-disciplinary physics: materials science
rheology
Eugenol
Exact sciences and technology
Inhibition
Materials science
Metals. Metallurgy
Physics
Steel
Surface treatments
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Summary:The effect of eugenol (Eug) and its derivative acetyleugenol (AcEug) extracted from the nail of giroflier on the corrosion of steel in molar hydrochloric acid has been studied using weight loss measurements, electrochemical polarisation and EIS methods. The naturally substances reduce the corrosion rate. The inhibition efficiency was found to increase with acetyleugenol content to attain 91% at 0.1737 g/l. Eugenol compounds act as mixed type inhibitors. The effect of temperature on the corrosion behaviour of steel indicates that inhibition efficiency of the natural substance increases with the rise of temperature. The adsorption of natural product on the steel is found to follow the Langmuir adsorption isotherm.
ISSN:0169-4332
1873-5584
DOI:10.1016/j.apsusc.2004.11.011