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Inhibitory Action of Pavetta Indica Leaf Extracts on the Corrosion of Mild Steel in Acid Media

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1TitleTitle of DocumentInhibitory Action of Pavetta Indica Leaf Extracts on the Corrosion of Mild Steel in Acid Media
2CreatorAuthor's name, affiliation, country V. N. SHEEJA and S. SUBHASHINI
Department of Chemistry, Avinashilingam Institute for Home Science and Higher Education for Women, Coimbatore-43, Tamilnadu, India
3SubjectDicipline(s) Chemical Science
3SubjectKeywords Corrosion inhibitiors, Mild steel, Acid media, Electrochemical impedance spectroscopy, Polarisation curves, Pavetta Indica Linn Leaf
4DescriptionAbstract The anticorrosive nature of Pavetta Indica Leaf extract (PIL) on mild steel corrosion in HCl and H2SO4 media has been studied by weight loss and electrochemical methods. The results of the study revealed that the acid extracts of PIL inhibit mild steel corrosion.The inhibition efficiency increases with increase in concentration of inhibitor. Potentiodynamic polarization studies clearly revealed that the PIL act as mixed type of inhibitor without changing the mechanism of hydrogen evolution reaction. Changes in impedance parameters are indicative of adsorption of the biomaterial on the metal surface leading to the formation of a protective layer which grows with increasing exposure time. The protective film formed on the metal surface was confirmed by SEM. Values of inhibition efficiency obtained from different methods are in good agreement and dependent upon the concentration of inhibitor.
5PublishersOrganizing agency, location WWW Publications, India
6Contributor Sponsor(s) -
7DateDate (YYYY-MM-DD) -
8TypeStatus & genre Peer-reviewed Article
8TypeType
9FormateFile Formate PDF
10IdentifierUniform Resource Identifier Click Here
10IdentifierDigital Object Identifier DOI:10.7598/cst2014.698
11SourceJournal/conference title; vol., no. (Year)Chemical Science Transactions, Volume  3 , Number  (1), (2014)
12LanuguageEnglish=en en
13RelationSupp.files
14Coverage -
15CopyrightCopyright and permissions
Chemical Science Transactions | Chem Sci Trans | CST | Online Chemistry Journal | Open Access
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