Corrosion inhibition of carbon steel by sodium metavanadate
The inhibition efficiency of sodium metavanadate (SMV)-adipic acid (AA) system in controlling corrosion of carbon steel in an aqueous solution containing 60 ppm of Cl- has been evaluated by weight-loss method; 250 ppm of SMV exhibits inhibition efficiency of 56 %. Addition of adipic acid to SMV impr...
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| Format: | Article |
| Language: | English |
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International Association of Physical Chemists (IAPC)
2012-08-01
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| Series: | Journal of Electrochemical Science and Engineering |
| Subjects: | |
| Online Access: | http://www.jese-online.org/Articles/Vol_02/No_3/pdf/jESE_Vol2_No3_p121-131_2012.pdf |
| _version_ | 1818583302774194176 |
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| author | VIJAYA GOPAL SRIBHARATHY SUSAI RAJENDRAN |
| author_facet | VIJAYA GOPAL SRIBHARATHY SUSAI RAJENDRAN |
| author_sort | VIJAYA GOPAL SRIBHARATHY |
| collection | DOAJ |
| description | The inhibition efficiency of sodium metavanadate (SMV)-adipic acid (AA) system in controlling corrosion of carbon steel in an aqueous solution containing 60 ppm of Cl- has been evaluated by weight-loss method; 250 ppm of SMV exhibits inhibition efficiency of 56 %. Addition of adipic acid to SMV improves the inhibition efficiency of the system. The formulation consisting of 250 ppm of SMV and 250 ppm of adipic acid has inhibition efficiency of 98 %. A synergistic effect exists between SMV and adipic acid with the synergism parameters greater than 1. Mecha¬nistic aspects of corrosion inhibition have been studied by electrochemical methods like potentiodynamic polarization and electrochemical impedance spectroscopy. FTIR spectra reveal that the protective film consists of Fe2+-SMV complex and Fe2+-adipic acid complex. The protective film has been analyzed by fluorescence spectra, SEM and EDAX. |
| first_indexed | 2024-12-16T08:03:08Z |
| format | Article |
| id | doaj.art-a94a6d1f4c8b4a8484d2ab9074553fd4 |
| institution | Directory Open Access Journal |
| issn | 1847-9286 |
| language | English |
| last_indexed | 2024-12-16T08:03:08Z |
| publishDate | 2012-08-01 |
| publisher | International Association of Physical Chemists (IAPC) |
| record_format | Article |
| series | Journal of Electrochemical Science and Engineering |
| spelling | doaj.art-a94a6d1f4c8b4a8484d2ab9074553fd42022-12-21T22:38:34ZengInternational Association of Physical Chemists (IAPC)Journal of Electrochemical Science and Engineering1847-92862012-08-0123121131Corrosion inhibition of carbon steel by sodium metavanadateVIJAYA GOPAL SRIBHARATHYSUSAI RAJENDRANThe inhibition efficiency of sodium metavanadate (SMV)-adipic acid (AA) system in controlling corrosion of carbon steel in an aqueous solution containing 60 ppm of Cl- has been evaluated by weight-loss method; 250 ppm of SMV exhibits inhibition efficiency of 56 %. Addition of adipic acid to SMV improves the inhibition efficiency of the system. The formulation consisting of 250 ppm of SMV and 250 ppm of adipic acid has inhibition efficiency of 98 %. A synergistic effect exists between SMV and adipic acid with the synergism parameters greater than 1. Mecha¬nistic aspects of corrosion inhibition have been studied by electrochemical methods like potentiodynamic polarization and electrochemical impedance spectroscopy. FTIR spectra reveal that the protective film consists of Fe2+-SMV complex and Fe2+-adipic acid complex. The protective film has been analyzed by fluorescence spectra, SEM and EDAX.http://www.jese-online.org/Articles/Vol_02/No_3/pdf/jESE_Vol2_No3_p121-131_2012.pdfCarbon steelcorrosion inhibitionfluorescencesynergism parametersSEMadipic acidsodium metavanadate |
| spellingShingle | VIJAYA GOPAL SRIBHARATHY SUSAI RAJENDRAN Corrosion inhibition of carbon steel by sodium metavanadate Journal of Electrochemical Science and Engineering Carbon steel corrosion inhibition fluorescence synergism parameters SEM adipic acid sodium metavanadate |
| title | Corrosion inhibition of carbon steel by sodium metavanadate |
| title_full | Corrosion inhibition of carbon steel by sodium metavanadate |
| title_fullStr | Corrosion inhibition of carbon steel by sodium metavanadate |
| title_full_unstemmed | Corrosion inhibition of carbon steel by sodium metavanadate |
| title_short | Corrosion inhibition of carbon steel by sodium metavanadate |
| title_sort | corrosion inhibition of carbon steel by sodium metavanadate |
| topic | Carbon steel corrosion inhibition fluorescence synergism parameters SEM adipic acid sodium metavanadate |
| url | http://www.jese-online.org/Articles/Vol_02/No_3/pdf/jESE_Vol2_No3_p121-131_2012.pdf |
| work_keys_str_mv | AT vijayagopalsribharathy corrosioninhibitionofcarbonsteelbysodiummetavanadate AT susairajendran corrosioninhibitionofcarbonsteelbysodiummetavanadate |