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
IR@NML: CSIR-National Metallurgical Laboratory, Jamshedpur
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| Title |
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
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| Creator |
Garai, Subhadra
Jaisankar, Parasuraman Singh, J K Elango, Adirajan |
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| Subject |
Corrosion Science
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| Description |
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.
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| Publisher |
Elsevier
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| Date |
2012
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://eprints.nmlindia.org/5085/1/sgarai-12.pdf
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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| Relation |
http://www.sciencedirect.com/science/article/pii/S0010938X12001540
http://eprints.nmlindia.org/5085/ |
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