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| Inhibition Effects of Chloroquinolines on Corrosion of Mild Steel in Hydrochloric Acid Solution |
| A. V. Shanbhag1,T. V. Venkatesha2,B. M. Praveen3,S. B. Abd Hamid4 |
1. Department of Chemistry, S.D.M. College, Honavar 581 334, Karnataka, India
2. Department of P.G. Studies and Research in Chemistry, Kuvempu University, Shankarghatta 577 451, Karnataka, India
3. Department of Chemistry, Srinivas School of Engineering, Mukka 575 021, Karnataka, India
4. Nanotechnology and Catalysis Research Centre NANOCAT, IPS, University of Malaya, Kuala Lumpur 53100, Malaysia |
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Abstract The corrosion inhibition efficiencies of four compounds namely N-��(1E)-(2-chloroquinolin-3-yl)methylene��-N-phenylamine(CQMA), N-(1E)-(2-chloroquinolin-3-yl) methylene��-N-(4-fluorophenyl)amine (CQMFA), N-(4-chloro phenyl)-N-��(1E)-(2-chloroquinolin-3-yl)methylene��amine (CQMCA),and N-(4-bromo phenyl)-N-��(1E)-(2-chloroquinolin-3-yl)methylene��amine (CQMBA) on mild steel corrosion in hydrochloric acid media were investigated using mass loss, potentiodynamic polarization and electrochemical impedance spectroscopy. For all the studied inhibitors the inhibition efficiency values were found to increase with increasing concentration up to 5.00��10-4 mol��dm-3. Scanning electron microscopic technique showed the formation of a thick film on the steel surface in the presence of inhibitors.
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Received: 09 October 2013
Published: 01 August 2014
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Corresponding Authors:
bm
E-mail: bm.praveen@yahoo.co.in
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2014, Vol. 21 
