Corrosion Inhibition Effect of Carbon Steel in Sea Water by L-Arginine-Zn2+ System

The inhibition efficiency of L-Arginine-Zn2+ system in controlling corrosion of carbon steel in sea water has been evaluated by the weight-loss method. The formulation consisting of 250 ppm of L-Arginine and 25 ppm of Zn2+ has 91% IE. A synergistic effect exists between L-Arginine and Zn2+. Polariza...

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Main Authors: S. Gowri, J. Sathiyabama, S. Rajendran
Format: Article
Language:English
Published: Wiley 2014-01-01
Series:International Journal of Chemical Engineering
Online Access:http://dx.doi.org/10.1155/2014/607209
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author S. Gowri
J. Sathiyabama
S. Rajendran
author_facet S. Gowri
J. Sathiyabama
S. Rajendran
author_sort S. Gowri
collection DOAJ
description The inhibition efficiency of L-Arginine-Zn2+ system in controlling corrosion of carbon steel in sea water has been evaluated by the weight-loss method. The formulation consisting of 250 ppm of L-Arginine and 25 ppm of Zn2+ has 91% IE. A synergistic effect exists between L-Arginine and Zn2+. Polarization study reveals that the L-Arginine-Zn2+ system functions as an anodic inhibitor and the formulation controls the anodic reaction predominantly. AC impedance spectra reveal that protective film is formed on the metal surface. Cyclic voltammetry study reveals that the protective film is more compact and stable even in a 3.5% NaCl environment. The nature of the protective film on a metal surface has been analyzed by FTIR, SEM, and AFM analysis.
format Article
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institution Kabale University
issn 1687-806X
1687-8078
language English
publishDate 2014-01-01
publisher Wiley
record_format Article
series International Journal of Chemical Engineering
spelling doaj-art-a05494241e114504b2f31066d5cd708f2025-02-03T06:44:00ZengWileyInternational Journal of Chemical Engineering1687-806X1687-80782014-01-01201410.1155/2014/607209607209Corrosion Inhibition Effect of Carbon Steel in Sea Water by L-Arginine-Zn2+ SystemS. Gowri0J. Sathiyabama1S. Rajendran2PG and Research Department of Chemistry, Corrosion Research Centre, GTN Arts College, Dindigul, Tamil Nadu 624 005, IndiaPG and Research Department of Chemistry, Corrosion Research Centre, GTN Arts College, Dindigul, Tamil Nadu 624 005, IndiaPG and Research Department of Chemistry, Corrosion Research Centre, GTN Arts College, Dindigul, Tamil Nadu 624 005, IndiaThe inhibition efficiency of L-Arginine-Zn2+ system in controlling corrosion of carbon steel in sea water has been evaluated by the weight-loss method. The formulation consisting of 250 ppm of L-Arginine and 25 ppm of Zn2+ has 91% IE. A synergistic effect exists between L-Arginine and Zn2+. Polarization study reveals that the L-Arginine-Zn2+ system functions as an anodic inhibitor and the formulation controls the anodic reaction predominantly. AC impedance spectra reveal that protective film is formed on the metal surface. Cyclic voltammetry study reveals that the protective film is more compact and stable even in a 3.5% NaCl environment. The nature of the protective film on a metal surface has been analyzed by FTIR, SEM, and AFM analysis.http://dx.doi.org/10.1155/2014/607209
spellingShingle S. Gowri
J. Sathiyabama
S. Rajendran
Corrosion Inhibition Effect of Carbon Steel in Sea Water by L-Arginine-Zn2+ System
International Journal of Chemical Engineering
title Corrosion Inhibition Effect of Carbon Steel in Sea Water by L-Arginine-Zn2+ System
title_full Corrosion Inhibition Effect of Carbon Steel in Sea Water by L-Arginine-Zn2+ System
title_fullStr Corrosion Inhibition Effect of Carbon Steel in Sea Water by L-Arginine-Zn2+ System
title_full_unstemmed Corrosion Inhibition Effect of Carbon Steel in Sea Water by L-Arginine-Zn2+ System
title_short Corrosion Inhibition Effect of Carbon Steel in Sea Water by L-Arginine-Zn2+ System
title_sort corrosion inhibition effect of carbon steel in sea water by l arginine zn2 system
url http://dx.doi.org/10.1155/2014/607209
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AT jsathiyabama corrosioninhibitioneffectofcarbonsteelinseawaterbylargininezn2system
AT srajendran corrosioninhibitioneffectofcarbonsteelinseawaterbylargininezn2system