Corrosion inhibition studies of cashew nut (Anacardium occidentale) on carbon steel in 1.0 M hydrochloric acid environment
The corrosion inhibitive characteristics of the cashew nut (Anacardium occidentale) were studied as an eco-friendly green corrosion inhibitor at ambient temperature of 25 °C using weight loss analysis and adsorption isotherms. The effect of inhibitor concentration (4–12 g/l) at immersion time of 3–1...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2018
|
| Online Access: | http://psasir.upm.edu.my/id/eprint/72132/1/Corrosion%20inhibition%20studies%20of%20cashew%20nut%20%28Anacardium%20occidentale%29%20on%20carbon%20steel%20in%201.0%E2%80%AFM%20hydrochloric%20acid%20environment.pdf |
| _version_ | 1825950035062292480 |
|---|---|
| author | Mohammed, Hassan Sobri, Shafreeza |
| author_facet | Mohammed, Hassan Sobri, Shafreeza |
| author_sort | Mohammed, Hassan |
| collection | UPM |
| description | The corrosion inhibitive characteristics of the cashew nut (Anacardium occidentale) were studied as an eco-friendly green corrosion inhibitor at ambient temperature of 25 °C using weight loss analysis and adsorption isotherms. The effect of inhibitor concentration (4–12 g/l) at immersion time of 3–12 days was evaluated. The inhibitive ability of cashew nut shows a significant inhibition efficiency of 86% at 12 g/l concentration for 3-days and 72.9% at 12-days, which are undoubtedly as a result of the absorption of the inhibitor molecules on the metal surface which serve as a barrier against corrosion of carbon steel in acidic medium. The adsorption mechanism was found to fit Tempkin isotherms. The average optimum free energy of absorption was calculated to be −17.374 kJ mol–1 indicating that the process was exothermic and physisorption. |
| first_indexed | 2024-03-06T10:08:27Z |
| format | Article |
| id | upm.eprints-72132 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T10:08:27Z |
| publishDate | 2018 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | upm.eprints-721322020-03-03T02:06:10Z http://psasir.upm.edu.my/id/eprint/72132/ Corrosion inhibition studies of cashew nut (Anacardium occidentale) on carbon steel in 1.0 M hydrochloric acid environment Mohammed, Hassan Sobri, Shafreeza The corrosion inhibitive characteristics of the cashew nut (Anacardium occidentale) were studied as an eco-friendly green corrosion inhibitor at ambient temperature of 25 °C using weight loss analysis and adsorption isotherms. The effect of inhibitor concentration (4–12 g/l) at immersion time of 3–12 days was evaluated. The inhibitive ability of cashew nut shows a significant inhibition efficiency of 86% at 12 g/l concentration for 3-days and 72.9% at 12-days, which are undoubtedly as a result of the absorption of the inhibitor molecules on the metal surface which serve as a barrier against corrosion of carbon steel in acidic medium. The adsorption mechanism was found to fit Tempkin isotherms. The average optimum free energy of absorption was calculated to be −17.374 kJ mol–1 indicating that the process was exothermic and physisorption. Elsevier 2018-10 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/72132/1/Corrosion%20inhibition%20studies%20of%20cashew%20nut%20%28Anacardium%20occidentale%29%20on%20carbon%20steel%20in%201.0%E2%80%AFM%20hydrochloric%20acid%20environment.pdf Mohammed, Hassan and Sobri, Shafreeza (2018) Corrosion inhibition studies of cashew nut (Anacardium occidentale) on carbon steel in 1.0 M hydrochloric acid environment. Materials Letters, 229. 82 - 84. ISSN 0167-577X; ESSN: 1873-4979 https://www.sciencedirect.com/science/article/pii/S0167577X18310140 10.1016/j.matlet.2018.06.108 |
| spellingShingle | Mohammed, Hassan Sobri, Shafreeza Corrosion inhibition studies of cashew nut (Anacardium occidentale) on carbon steel in 1.0 M hydrochloric acid environment |
| title | Corrosion inhibition studies of cashew nut (Anacardium occidentale) on carbon steel in 1.0 M hydrochloric acid environment |
| title_full | Corrosion inhibition studies of cashew nut (Anacardium occidentale) on carbon steel in 1.0 M hydrochloric acid environment |
| title_fullStr | Corrosion inhibition studies of cashew nut (Anacardium occidentale) on carbon steel in 1.0 M hydrochloric acid environment |
| title_full_unstemmed | Corrosion inhibition studies of cashew nut (Anacardium occidentale) on carbon steel in 1.0 M hydrochloric acid environment |
| title_short | Corrosion inhibition studies of cashew nut (Anacardium occidentale) on carbon steel in 1.0 M hydrochloric acid environment |
| title_sort | corrosion inhibition studies of cashew nut anacardium occidentale on carbon steel in 1 0 m hydrochloric acid environment |
| url | http://psasir.upm.edu.my/id/eprint/72132/1/Corrosion%20inhibition%20studies%20of%20cashew%20nut%20%28Anacardium%20occidentale%29%20on%20carbon%20steel%20in%201.0%E2%80%AFM%20hydrochloric%20acid%20environment.pdf |
| work_keys_str_mv | AT mohammedhassan corrosioninhibitionstudiesofcashewnutanacardiumoccidentaleoncarbonsteelin10mhydrochloricacidenvironment AT sobrishafreeza corrosioninhibitionstudiesofcashewnutanacardiumoccidentaleoncarbonsteelin10mhydrochloricacidenvironment |