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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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.
|Uncontrolled Keywords:||A. Mild steel B. Weight loss B. Raman spectroscopy B. XPS B. IR spectroscopy C. Acid inhibition|
|Divisions:||Corrosion and Surface Engineering|
Material Science and Technology
|Deposited By:||INVALID USER|
|Deposited On:||03 May 2012 11:44|
|Last Modified:||03 Jul 2012 16:19|
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