Loto, R. T. and Alagbe, Edith Egbimhanlu. and Ogunleye, O. M. (2022) Performance evaluation of the corrosion protection of admixture of Cymbopogon nardus and Commiphora myrrha on high carbon steel in CH3COOH and C6H8O7 solution. Materials Today: Proceedings.
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Abstract
Data from weight loss analysis on the protection performance of the combined admixture of Cymbopogon nardus and Commiphora myrrha (CCM) oil extracts on high carbon steel (HC-S) in 3 M CH3COOH and C6H8O7 acid solution was analysed. CCM extract performed effectively in CH3COOH solution at minimum– maximum values of 53.06% and 80.12% at 168 h of exposure. These value corresponds with corrosion rate data of 1.238 mm/y and 0.525 mm/y relative to corrosion rate of HC-S (2.638 mm/y) at 0% CCM concentration. CCM performed poorly in C6H8O7 solution with minimum–maximum values of 12.83% and 43.81% which corresponds to corrosion rates of 6.115 mm/y and 3.942 mm/y relative to corrosion rate value of 7.015 mm/y at 0% CCM concentration. The protection performance of CCM extract varies more significantly with respect to CCM concentration compared to measurement time. The statistical significance factor of CCM concentration in both acids are 64.85% and 93.93% compared to the corresponding values for measurement time at 25.95% and 4.11%. Standard deviation data for CCM extracts in CH3COOH varied minimally from median values at 0.42% to 1.25% CCM concentration compared to the value at 1.67% CCM concentration. The standard deviation values for CCM in C6H8O7 solution were relatively smaller than the values in CH3COOH solution signifying greater thermodynamic stability. Data shows that 39.3% of CCM protection performance data in CH3COOH is greater than 65% efficiency at margin of error of 18.1%. The corresponding value for CCM in C6H8O7 solution is zero wherewith none of the protection performance data is greater than 65% protection efficiency.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Carbon steel Inhibitor Corrosion Plant extract Acid |
| Subjects: | T Technology > TJ Mechanical engineering and machinery T Technology > TP Chemical technology |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Engineering Sciences |
| Depositing User: | nwokealisi |
| Date Deposited: | 19 Sep 2023 15:06 |
| Last Modified: | 19 Sep 2023 15:06 |
| URI: | http://eprints.covenantuniversity.edu.ng/id/eprint/17305 |
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