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PLANTS EXTRACTS CORROSION INHIBITION OF ALUMINIUM ALLOY IN H2SO4

Loto, C. A. and Popoola, A. P. I. (2012) PLANTS EXTRACTS CORROSION INHIBITION OF ALUMINIUM ALLOY IN H2SO4. Canadian Journal of Pure and Applied Sciences, 6 (2). pp. 1973-1980. ISSN 1715-9997

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Abstract

Effects of tobacco (Nicotiana) and Kola tree (Cola acuminata) extracts on the corrosion inhibition of an aluminium alloy 2S (1200) grade specimens immersed in 0.5M sulphuric acid was investigated at ambient temperature by gravimetric and metallographic methods. Extracts of kola plant and tobacco in different concentrations were used as ‘green’ inhibitors. This paper reports the results obtained from the weight loss method, calculated corrosion rates, inhibitor efficiencies and the optical microscopy metallographic observations. Addition of different concentrations of the plants extracts gave clear reduction in weight loss and in the corrosion rate of the test samples. This apparent corrosion inhibition was associated with the protective film provided on the aluminium alloy’s surface by the complex chemical constituents of the plants extracts.

Item Type: Article
Subjects: T Technology > TP Chemical technology
Divisions: Faculty of Engineering, Science and Mathematics > School of Engineering Sciences
Depositing User: Mr Adewole Adewumi
Date Deposited: 18 Aug 2013 10:12
Last Modified: 18 Aug 2013 10:57
URI: http://eprints.covenantuniversity.edu.ng/id/eprint/1306

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