Mild steel deterioration inhibition in 1.0M and 5.0M tetraoxosulphate (VI) acid using leaf extract of <i>Pterocarpus santaliniodes</i>
The prevention of deterioration of mild steel in 1.0M and 5.0M H2SO4 solution by leaf extracts of Pterocarpus santaliniodes was investigated in this study using gravimetric and gasometric methods. Data obtained from the study revealed that leaf extracts had a maximum inhibition efficiency of 88.70%...
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| Format: | Article |
| Language: | English |
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Joint Coordination Centre of the World Bank assisted National Agricultural Research Programme (NARP)
2018-09-01
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| Series: | Journal of Applied Sciences and Environmental Management |
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| Online Access: | https://www.ajol.info/index.php/jasem/article/view/177442 |
| _version_ | 1827297065325035520 |
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| author | E.O. Ofoma P.N. Ekemezie C.N. Emeruwa |
| author_facet | E.O. Ofoma P.N. Ekemezie C.N. Emeruwa |
| author_sort | E.O. Ofoma |
| collection | DOAJ |
| description |
The prevention of deterioration of mild steel in 1.0M and 5.0M H2SO4 solution by leaf extracts of Pterocarpus santaliniodes was investigated in this study using gravimetric and gasometric methods. Data obtained from the study revealed that leaf extracts had a maximum inhibition efficiency of 88.70% and 96% for weight loss and gasometric analysis, respectively for 1.0M H2SO4, and an inhibition efficiency of 71.76% and 79.66% for weight loss and gasometric analysis respectively for 5.0M H2SO4. It was observed that the gasometric method gave the optimum protection. The average activation energy was 73.71KJ/mol in 1.0M H2SO4, and 74.41KJ/mol in 5.0M H2SO4. The adsorption of the phytochemicals on the surface of the mild steel were further assessed by the Langmuir and Freundlich isotherms. The extract was found to be good inhibitor for mild steel corrosion in the H2SO4 solutions. The amount of material loss decreased in the in the presence of the extract when compared to the blank acid solution.
Keywords: Mild steel, Corrosion inhibition, H2SO4, Pterocarpus santaliniodes
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| first_indexed | 2024-04-24T14:49:12Z |
| format | Article |
| id | doaj.art-62e7416b89fc49fcb99caebed4343157 |
| institution | Directory Open Access Journal |
| issn | 2659-1502 2659-1499 |
| language | English |
| last_indexed | 2024-04-24T14:49:12Z |
| publishDate | 2018-09-01 |
| publisher | Joint Coordination Centre of the World Bank assisted National Agricultural Research Programme (NARP) |
| record_format | Article |
| series | Journal of Applied Sciences and Environmental Management |
| spelling | doaj.art-62e7416b89fc49fcb99caebed43431572024-04-02T19:51:31ZengJoint Coordination Centre of the World Bank assisted National Agricultural Research Programme (NARP)Journal of Applied Sciences and Environmental Management2659-15022659-14992018-09-0122810.4314/jasem.v22i8.32Mild steel deterioration inhibition in 1.0M and 5.0M tetraoxosulphate (VI) acid using leaf extract of <i>Pterocarpus santaliniodes</i>E.O. OfomaP.N. EkemezieC.N. Emeruwa The prevention of deterioration of mild steel in 1.0M and 5.0M H2SO4 solution by leaf extracts of Pterocarpus santaliniodes was investigated in this study using gravimetric and gasometric methods. Data obtained from the study revealed that leaf extracts had a maximum inhibition efficiency of 88.70% and 96% for weight loss and gasometric analysis, respectively for 1.0M H2SO4, and an inhibition efficiency of 71.76% and 79.66% for weight loss and gasometric analysis respectively for 5.0M H2SO4. It was observed that the gasometric method gave the optimum protection. The average activation energy was 73.71KJ/mol in 1.0M H2SO4, and 74.41KJ/mol in 5.0M H2SO4. The adsorption of the phytochemicals on the surface of the mild steel were further assessed by the Langmuir and Freundlich isotherms. The extract was found to be good inhibitor for mild steel corrosion in the H2SO4 solutions. The amount of material loss decreased in the in the presence of the extract when compared to the blank acid solution. Keywords: Mild steel, Corrosion inhibition, H2SO4, Pterocarpus santaliniodes https://www.ajol.info/index.php/jasem/article/view/177442Mild steelCorrosion inhibitionH2SO4Pterocarpus santaliniodes |
| spellingShingle | E.O. Ofoma P.N. Ekemezie C.N. Emeruwa Mild steel deterioration inhibition in 1.0M and 5.0M tetraoxosulphate (VI) acid using leaf extract of <i>Pterocarpus santaliniodes</i> Journal of Applied Sciences and Environmental Management Mild steel Corrosion inhibition H2SO4 Pterocarpus santaliniodes |
| title | Mild steel deterioration inhibition in 1.0M and 5.0M tetraoxosulphate (VI) acid using leaf extract of <i>Pterocarpus santaliniodes</i> |
| title_full | Mild steel deterioration inhibition in 1.0M and 5.0M tetraoxosulphate (VI) acid using leaf extract of <i>Pterocarpus santaliniodes</i> |
| title_fullStr | Mild steel deterioration inhibition in 1.0M and 5.0M tetraoxosulphate (VI) acid using leaf extract of <i>Pterocarpus santaliniodes</i> |
| title_full_unstemmed | Mild steel deterioration inhibition in 1.0M and 5.0M tetraoxosulphate (VI) acid using leaf extract of <i>Pterocarpus santaliniodes</i> |
| title_short | Mild steel deterioration inhibition in 1.0M and 5.0M tetraoxosulphate (VI) acid using leaf extract of <i>Pterocarpus santaliniodes</i> |
| title_sort | mild steel deterioration inhibition in 1 0m and 5 0m tetraoxosulphate vi acid using leaf extract of i pterocarpus santaliniodes i |
| topic | Mild steel Corrosion inhibition H2SO4 Pterocarpus santaliniodes |
| url | https://www.ajol.info/index.php/jasem/article/view/177442 |
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