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Influence of azoles as corrosion inhibitor towards 3003 aluminum in trichloroacetic acid solution

✍ Scribed by R. K. Shah; B. B. Patel; N. K. Patel

Publisher
John Wiley and Sons
Year
1974
Tongue
German
Weight
189 KB
Volume
25
Category
Article
ISSN
0947-5117

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✦ Synopsis

Abstract

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.

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