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N-benzyl-N1-phenyl Thiourea as Corrosion Inhibitor for 304SS in Hydrochloric Acid Solution

Herle, Ramadev and Shetty, Prakash and Shetty, Divakara S and Kini, Achutha U (2009) N-benzyl-N1-phenyl Thiourea as Corrosion Inhibitor for 304SS in Hydrochloric Acid Solution. Journal of Metallurgy and Materials Science, 51 (2). ISSN 0972-4257

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Abstract

The corrosion behavior of 304 SS in 1 N HCl solutions containing different concentrations of N-benzyl – N1 - phenyl thiourea (BPTU) at different temperatures was investigated using potentiostatic polarization technique and weight loss method. The results obtained shows that BPTU is an efficient anodic inhibitor with efficiency of greater than 93% in the temperature range studied. The adsorption of this compound on the 304 SS surface was found to obey Temkins isotherm, and the inhibition was governed by physisorption mechanism. The thermodynamic parameters deduced for the adsorption process reveal a strong interaction and spontaneous adsorption of BPTU on the alloy steel surface.

Item Type: Article
Uncontrolled Keywords: 304 SS, Hydrochloric acid, Anodic inhibitor, Potentiostatic polarization, Adsorption, Corrosion inhibition.
Subjects: Engineering > MIT Manipal > Mechanical and Manufacturing
Engineering > MIT Manipal > Printing and Media
Depositing User: MIT Library
Date Deposited: 27 Jul 2011 06:21
Last Modified: 27 Jul 2011 06:21
URI: http://eprints.manipal.edu/id/eprint/963

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