Materials 2013, 6(6), 2436-2451; doi:10.3390/ma6062436
Article

Kinetics of Corrosion Inhibition of Aluminum in Acidic Media by Water-Soluble Natural Polymeric Pectates as Anionic Polyelectrolyte Inhibitors

Received: 2 April 2013; in revised form: 24 May 2013 / Accepted: 29 May 2013 / Published: 17 June 2013
(This article belongs to the Special Issue Corrosion Monitoring and Control)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: Corrosion inhibition of aluminum (Al) in hydrochloric acid by anionic polyeletrolyte pectates (PEC) as a water-soluble natural polymer polysaccharide has been studied using both gasometric and weight loss techniques. The results drawn from these two techniques are comparable and exhibit negligible differences. The inhibition efficiency was found to increase with increasing inhibitor concentration and decrease with increasing temperature. The inhibition action of PEC on Al metal surface was found to obey the Freundlich isotherm. Factors such as the concentration and geometrical structure of the inhibitor, concentration of the corrosive medium, and temperature affecting the corrosion rates were examined. The kinetic parameters were evaluated and a suitable corrosion mechanism consistent with the kinetic results is discussed in the paper.
Keywords: corrosion; inhibitors; aluminum; pectates; kinetics; mechanisms
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MDPI and ACS Style

Hassan, R.M.; Zaafarany, I.A. Kinetics of Corrosion Inhibition of Aluminum in Acidic Media by Water-Soluble Natural Polymeric Pectates as Anionic Polyelectrolyte Inhibitors. Materials 2013, 6, 2436-2451.

AMA Style

Hassan RM, Zaafarany IA. Kinetics of Corrosion Inhibition of Aluminum in Acidic Media by Water-Soluble Natural Polymeric Pectates as Anionic Polyelectrolyte Inhibitors. Materials. 2013; 6(6):2436-2451.

Chicago/Turabian Style

Hassan, Refat M.; Zaafarany, Ishaq A. 2013. "Kinetics of Corrosion Inhibition of Aluminum in Acidic Media by Water-Soluble Natural Polymeric Pectates as Anionic Polyelectrolyte Inhibitors." Materials 6, no. 6: 2436-2451.

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