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Palm Olein as an Eco-Friendly Corrosion Inhibitor | ||
| Al-Mustansiriyah Journal of Science | ||
| Article 1, Volume 21, Issue 3, 2010, Pages 95-102 | ||
| Author | ||
| Nesreen S. Mohammed | ||
| Abstract | ||
| The unsaturated fatty acid consists of oleic and linoleic acids. Both of these acids contain carbonyl groups and double bonds. The carbonyl group structure enhances the adsorption process of the palm olein on the metal surface. However, not much work has been reported on the use of palm olein as corrosion inhibitor. This paper focuses on the effect of palm olein as corrosion inhibitor for aluminum in 1 M HCl solution. Aluminum samples were exposed in 1 M HCl solution with or without the presence of inhibitor for weight loss measurement test. The corrosion study was performed at room temperature with different concentrations of inhibitors. The sample was retrieved every few hours within 48 hours for weight measurement. It was found that inhibition efficiency of the palm olein is comparable to that of the commercial inhibitor. From the adsorption isotherm study, it was shown that the palm olein protects the Al surface through physical adsorption. | ||
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