Inhibition of Corrosion of Carbon Steel in Well Water by DL-Phenylalanine-Zn2+ System

The environmental friendly inhibitor system DL-phenylalanine-Zn2+ has been investigated by weight loss method. A synergistic effect exists between DL-phenylalanine and Zn2+ system. The formulation consisting of 150 ppm of DL-phenylalanine and 5 ppm of Zn2+ offers good inhibition efficiency of 90%. P...

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Main Authors: A. Sahaya Raja, S. Rajendran, P. Satyabama
Format: Article
Language:English
Published: Wiley 2013-01-01
Series:Journal of Chemistry
Online Access:http://dx.doi.org/10.1155/2013/720965
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author A. Sahaya Raja
S. Rajendran
P. Satyabama
author_facet A. Sahaya Raja
S. Rajendran
P. Satyabama
author_sort A. Sahaya Raja
collection DOAJ
description The environmental friendly inhibitor system DL-phenylalanine-Zn2+ has been investigated by weight loss method. A synergistic effect exists between DL-phenylalanine and Zn2+ system. The formulation consisting of 150 ppm of DL-phenylalanine and 5 ppm of Zn2+ offers good inhibition efficiency of 90%. Polarization study reveals that this formulation functions as a anodic inhibitor. AC impedance spectra reveal that a protective film is formed on the metal surface. The surface morphology has been analysed by SEM and EDAX. A suitable mechanism of corrosion inhibition is proposed based on the results obtained from weight loss study and electrochemical studies.
format Article
id doaj-art-80df1529d75049f4b299e33d9a9ebe52
institution Kabale University
issn 2090-9063
2090-9071
language English
publishDate 2013-01-01
publisher Wiley
record_format Article
series Journal of Chemistry
spelling doaj-art-80df1529d75049f4b299e33d9a9ebe522025-02-03T01:27:44ZengWileyJournal of Chemistry2090-90632090-90712013-01-01201310.1155/2013/720965720965Inhibition of Corrosion of Carbon Steel in Well Water by DL-Phenylalanine-Zn2+ SystemA. Sahaya Raja0S. Rajendran1P. Satyabama2PG and Research Department of Chemistry, GTN Arts College, Dindigul 624005, IndiaDepartment of Chemistry, RVS School of Engineering and Technology, Dindigul 624005, IndiaDepartment of Chemistry, Anna University of Technology Madurai, Dindigul Campus, Dindigul, IndiaThe environmental friendly inhibitor system DL-phenylalanine-Zn2+ has been investigated by weight loss method. A synergistic effect exists between DL-phenylalanine and Zn2+ system. The formulation consisting of 150 ppm of DL-phenylalanine and 5 ppm of Zn2+ offers good inhibition efficiency of 90%. Polarization study reveals that this formulation functions as a anodic inhibitor. AC impedance spectra reveal that a protective film is formed on the metal surface. The surface morphology has been analysed by SEM and EDAX. A suitable mechanism of corrosion inhibition is proposed based on the results obtained from weight loss study and electrochemical studies.http://dx.doi.org/10.1155/2013/720965
spellingShingle A. Sahaya Raja
S. Rajendran
P. Satyabama
Inhibition of Corrosion of Carbon Steel in Well Water by DL-Phenylalanine-Zn2+ System
Journal of Chemistry
title Inhibition of Corrosion of Carbon Steel in Well Water by DL-Phenylalanine-Zn2+ System
title_full Inhibition of Corrosion of Carbon Steel in Well Water by DL-Phenylalanine-Zn2+ System
title_fullStr Inhibition of Corrosion of Carbon Steel in Well Water by DL-Phenylalanine-Zn2+ System
title_full_unstemmed Inhibition of Corrosion of Carbon Steel in Well Water by DL-Phenylalanine-Zn2+ System
title_short Inhibition of Corrosion of Carbon Steel in Well Water by DL-Phenylalanine-Zn2+ System
title_sort inhibition of corrosion of carbon steel in well water by dl phenylalanine zn2 system
url http://dx.doi.org/10.1155/2013/720965
work_keys_str_mv AT asahayaraja inhibitionofcorrosionofcarbonsteelinwellwaterbydlphenylalaninezn2system
AT srajendran inhibitionofcorrosionofcarbonsteelinwellwaterbydlphenylalaninezn2system
AT psatyabama inhibitionofcorrosionofcarbonsteelinwellwaterbydlphenylalaninezn2system