inhibition of the acid corrosion of aluminium by some derivatives of thiosemicarbazone

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ID: 185499
2004
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Abstract
The inhibition of corrosion of aluminium in HCl solution by some derivatives of thiosemicarbazones has been studied using weight loss and hydrogen evolution techniques. The thiosemicarbazone derivatives used are 2-acetyl pyridine-(4-phenylthiosemicarbazone) (PTSC), 2-acetyl pyridine-(4-phenyl-iso-methylthiosemicarbazone) (PIMTSC) and 2-acetyl pyridine-(4-phenyl-iso-ethylthiosemicarbazone) (PIETSC). The inhibition efficiency depended on the compounds concentration until at very low concentration studied where they reversed their functions and became accelerators. Kinetic treatment of the results gave a first order type of mechanism. The results reported in this paper elucidate the effects of inhibitor concentration, temperature and the molecular structure on the inhibition efficiency.
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Authors ;P.C. Okafor;E.E. Ebenso;U.J. Ekpe
Journal Experimental physiology
Year 2004
DOI
DOI not found
URL
http://www.ajol.info/index.php/bcse/article/view/61442
Keywords
aluminium corrosion inhibition kineticschemistry

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