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Corrosion Inhibition of iron in 2M hydrochloric acid solution
Author(s) -
Fouda A. S.,
EiBaz A. M.,
Moussa M. N.,
EiGaber A. S.
Publication year - 1995
Publication title -
materialwissenschaft und werkstofftechnik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.285
H-Index - 38
eISSN - 1521-4052
pISSN - 0933-5137
DOI - 10.1002/mawe.19950260707
Subject(s) - tafel equation , hydrochloric acid , corrosion , chemistry , adsorption , polarization (electrochemistry) , inorganic chemistry , corrosion inhibitor , oxime , cathodic protection , hydrazone , nuclear chemistry , electrochemistry , stereochemistry , organic chemistry , electrode
Abstract The effect of some hydrazone oxime derivatives on the corrosion of iron in 2M HCl have been studied by polarization and weight‐loss techniques. It was found that the compounds under consideration are adsorbed on the iron surface according toe the Temkin isotherm. The Tafel slope is approximately constant independent of the concentration of the inhibitor. The results of polarization indicate that all compounds tested were of a mixed type, but the cathodic is more preferenially polarized. The inhibition efficiency was found to follow the order:I>III>IV>VI>II.