Corrosion Inhibition and Adsorption Characteristics of Tarivid on Mild Steel in H2SO4
The corrosion inhibition and adsorption characteristics of (+/-)-9-fluoro-2,3-dihydro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid (Tarivid) on the corrosion of mild steel has been studied using thermometric and gasometric methods. The study revea...
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| Format: | Article |
| Language: | English |
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Wiley
2010-01-01
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| Series: | E-Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2010/594743 |
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| author | N. O. Eddy E. E. Ebenso |
| author_facet | N. O. Eddy E. E. Ebenso |
| author_sort | N. O. Eddy |
| collection | DOAJ |
| description | The corrosion inhibition and adsorption characteristics of (+/-)-9-fluoro-2,3-dihydro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid (Tarivid) on the corrosion of mild steel has been studied using thermometric and gasometric methods. The study reveals that tarivid inhibits the corrosion of mild steel in H2SO4. The values of inhibition efficiency of tarivid were found to increase as its concentration increased but decreased with increase in temperature. Activation energies of the inhibited corrosion of mild steel ranged from 39.05 to 50.61 kJ/mol. Values of enthalpy change and free energy of adsorption were negative which indicated exothermic and spontaneous adsorption process. Physical adsorption mechanism is proposed from the obtained kinetic and thermodynamic parameters. Langmuir adsorption isotherm model is obeyed from the fit of the experimental data. |
| format | Article |
| id | doaj-art-b1b5e2cc37b54fb7aaf2dd233ad6c85a |
| institution | Kabale University |
| issn | 0973-4945 2090-9810 |
| language | English |
| publishDate | 2010-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | E-Journal of Chemistry |
| spelling | doaj-art-b1b5e2cc37b54fb7aaf2dd233ad6c85a2025-02-03T05:48:26ZengWileyE-Journal of Chemistry0973-49452090-98102010-01-017S1S442S44810.1155/2010/594743Corrosion Inhibition and Adsorption Characteristics of Tarivid on Mild Steel in H2SO4N. O. Eddy0E. E. Ebenso1Department of Chemistry, Ahmadu Bello University, Zaria, Kaduna State, NigeriaDepartment of Chemistry, North West University (Mafikeng Campus), Private Bag X2046, Mmabatho 2735, South AfricaThe corrosion inhibition and adsorption characteristics of (+/-)-9-fluoro-2,3-dihydro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid (Tarivid) on the corrosion of mild steel has been studied using thermometric and gasometric methods. The study reveals that tarivid inhibits the corrosion of mild steel in H2SO4. The values of inhibition efficiency of tarivid were found to increase as its concentration increased but decreased with increase in temperature. Activation energies of the inhibited corrosion of mild steel ranged from 39.05 to 50.61 kJ/mol. Values of enthalpy change and free energy of adsorption were negative which indicated exothermic and spontaneous adsorption process. Physical adsorption mechanism is proposed from the obtained kinetic and thermodynamic parameters. Langmuir adsorption isotherm model is obeyed from the fit of the experimental data.http://dx.doi.org/10.1155/2010/594743 |
| spellingShingle | N. O. Eddy E. E. Ebenso Corrosion Inhibition and Adsorption Characteristics of Tarivid on Mild Steel in H2SO4 E-Journal of Chemistry |
| title | Corrosion Inhibition and Adsorption Characteristics of Tarivid on Mild Steel in H2SO4 |
| title_full | Corrosion Inhibition and Adsorption Characteristics of Tarivid on Mild Steel in H2SO4 |
| title_fullStr | Corrosion Inhibition and Adsorption Characteristics of Tarivid on Mild Steel in H2SO4 |
| title_full_unstemmed | Corrosion Inhibition and Adsorption Characteristics of Tarivid on Mild Steel in H2SO4 |
| title_short | Corrosion Inhibition and Adsorption Characteristics of Tarivid on Mild Steel in H2SO4 |
| title_sort | corrosion inhibition and adsorption characteristics of tarivid on mild steel in h2so4 |
| url | http://dx.doi.org/10.1155/2010/594743 |
| work_keys_str_mv | AT noeddy corrosioninhibitionandadsorptioncharacteristicsoftarividonmildsteelinh2so4 AT eeebenso corrosioninhibitionandadsorptioncharacteristicsoftarividonmildsteelinh2so4 |