Garai, Subhadra and Jaisankar, Parasuraman and Singh, J K and Elango, Adirajan (2012) A comprehensive study on crude methanolic extract of Artemisia pallens (Asteraceae) and its active component as effective corrosion inhibitors of mild steel in acid solution. Corrosion Science, 60. pp. 193-204.
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Abstract
Corrosion inhibition effects of crude methanolic extract of Artemisia pallens on mild steel in 1 mol l1 HCl
were studied by weight loss and electrochemical technique. Arbutin, an active principle from A. pallens
and the crude methanolic extract exhibited inhibition efficiency of 93% and 98% in 400 mg l1 concentration
at 30 C respectively. The results indicated that arbutin in acidic medium acted as good anticorrosive
agent synergistically with its hydrolyzed products hydroquinone and D-glucose. Adsorption
of both the inhibitors on mild steel surface conformed to the Langmuir isotherm with standard
adsorption free energy of 33.07 kJ mol1 for arbutin.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | A. Mild steel B. Weight loss B. Raman spectroscopy B. XPS B. IR spectroscopy C. Acid inhibition |
| Subjects: | Corrosion Science |
| Divisions: | Corrosion and Surface Engineering Material Science and Technology |
| Depositing User: | Users 166 not found. |
| Date Deposited: | 03 May 2012 06:14 |
| Last Modified: | 03 Jul 2012 10:49 |
| URI: | http://eprints.nmlindia.org/id/eprint/5085 |
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