Inhibition of corrosion of carbon steel in well water by arginine-Zn2+ system

The environmental friendly inhibitor system arginine-Zn2+, has been investigated by weight-loss method. A synergistic effect exists between arginine and Zn2+ system. The formulation consisting of 250 ppm of arginine and 5 ppm of Zn2+ offers good inhibition efficiency of 98 %. Polarization study reve...

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Main Authors: Anthony Samy Sahaya Raja, Susai Rajendran
Format: Article
Language:English
Published: International Association of Physical Chemists (IAPC) 2012-06-01
Series:Journal of Electrochemical Science and Engineering
Online Access:http://pub.iapchem.org/ojs/index.php/JESE/article/view/70
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author Anthony Samy Sahaya Raja
Susai Rajendran
author_facet Anthony Samy Sahaya Raja
Susai Rajendran
author_sort Anthony Samy Sahaya Raja
collection DOAJ
description The environmental friendly inhibitor system arginine-Zn2+, has been investigated by weight-loss method. A synergistic effect exists between arginine and Zn2+ system. The formulation consisting of 250 ppm of arginine and 5 ppm of Zn2+ offers good inhibition efficiency of 98 %. Polarization study reveals that this formulation functions as an anodic inhibitor. AC impedance spectra reveal that a protective film is formed on the metal sur­face. The FTIR spectral study leads to the conclusion that the Fe2+- DL-arginine complex, formed on anodic sites of the metal surface, controls the anodic reaction. Zn(OH)2 formed on the cathodic sites of the metal surface controls the cathodic reaction. The surface morphology and the roughness of the metal surface were analyzed with Atomic Force Microscope. A suitable mechanism of corrosion inhibition is proposed based on the results obtained from weight loss study and surface analysis technique.
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spelling doaj.art-a52364bb568142ae9ab27e35c23dfe0f2022-12-22T01:55:32ZengInternational Association of Physical Chemists (IAPC)Journal of Electrochemical Science and Engineering1847-92862012-06-012210.5599/70Inhibition of corrosion of carbon steel in well water by arginine-Zn2+ systemAnthony Samy Sahaya Raja0Susai Rajendran1PG and Research Department of Chemistry, GTN Arts College, Dindigul-624005, Tamil NaduDepartment of Chemistry, RVS School of Engineering and Technology, Dindigul-624005, Tamil NaduThe environmental friendly inhibitor system arginine-Zn2+, has been investigated by weight-loss method. A synergistic effect exists between arginine and Zn2+ system. The formulation consisting of 250 ppm of arginine and 5 ppm of Zn2+ offers good inhibition efficiency of 98 %. Polarization study reveals that this formulation functions as an anodic inhibitor. AC impedance spectra reveal that a protective film is formed on the metal sur­face. The FTIR spectral study leads to the conclusion that the Fe2+- DL-arginine complex, formed on anodic sites of the metal surface, controls the anodic reaction. Zn(OH)2 formed on the cathodic sites of the metal surface controls the cathodic reaction. The surface morphology and the roughness of the metal surface were analyzed with Atomic Force Microscope. A suitable mechanism of corrosion inhibition is proposed based on the results obtained from weight loss study and surface analysis technique.http://pub.iapchem.org/ojs/index.php/JESE/article/view/70
spellingShingle Anthony Samy Sahaya Raja
Susai Rajendran
Inhibition of corrosion of carbon steel in well water by arginine-Zn2+ system
Journal of Electrochemical Science and Engineering
title Inhibition of corrosion of carbon steel in well water by arginine-Zn2+ system
title_full Inhibition of corrosion of carbon steel in well water by arginine-Zn2+ system
title_fullStr Inhibition of corrosion of carbon steel in well water by arginine-Zn2+ system
title_full_unstemmed Inhibition of corrosion of carbon steel in well water by arginine-Zn2+ system
title_short Inhibition of corrosion of carbon steel in well water by arginine-Zn2+ system
title_sort inhibition of corrosion of carbon steel in well water by arginine zn2 system
url http://pub.iapchem.org/ojs/index.php/JESE/article/view/70
work_keys_str_mv AT anthonysamysahayaraja inhibitionofcorrosionofcarbonsteelinwellwaterbyargininezn2system
AT susairajendran inhibitionofcorrosionofcarbonsteelinwellwaterbyargininezn2system