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Influence of azoles as corrosion inhibitor towards 3003 aluminum in trichloroacetic acid solution
Author(s) -
Shah R. K.,
Patel B. B.,
Patel N. K.
Publication year - 1974
Publication title -
materials and corrosion
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.487
H-Index - 55
eISSN - 1521-4176
pISSN - 0947-5117
DOI - 10.1002/maco.19740251012
Subject(s) - chemistry , trichloroacetic acid , aluminium , corrosion inhibitor , metal , sulfur , corrosion , adsorption , cathodic protection , inorganic chemistry , nuclear chemistry , organic chemistry , electrochemistry , electrode
2‐Mercaptobenzthiozole, 1,2,3‐benztriazole, 2‐methylbenzthiazole and indole are efficient inhibitors of the corrosion of aluminium 3003 in 0.1 N trichloroacetic acid. With the exception of 1,2,3‐benztriazole which is a mixed type inhibitor the other compounds are cathodic inhibitors. The introduction of ‐SH‐group is favourable. The effect of the inhibitors may be due to the fact that the particular substance is adsorbed to the metal surface where stable bonds are formed between metal and sulfur and nitrogen respectively. The metal‐sulfur bond is stronger.