A COMPARATIVE-STUDY OF BENZOTRIAZOLE AND 2-AMINO-5-MERCAPTO-1,3,4-THIADIAZOLE AS COPPER CORROSION-INHIBITORS IN ACID-MEDIA

Authors
BASTIDAS JM OTERO E
Citation
Jm. Bastidas et E. Otero, A COMPARATIVE-STUDY OF BENZOTRIAZOLE AND 2-AMINO-5-MERCAPTO-1,3,4-THIADIAZOLE AS COPPER CORROSION-INHIBITORS IN ACID-MEDIA, Werkstoffe und Korrosion, 47(6), 1996, pp. 333-337
Citations number
9
Categorie Soggetti
Metallurgy & Metallurigical Engineering","Material Science
Journal title
Werkstoffe und Korrosion → ACNP
ISSN journal
09475117
Volume
47
Issue
6
Year of publication
1996
Pages
333 - 337
Database
ISI
SICI code
0947-5117(1996)47:6<333:ACOBA2>2.0.ZU;2-W
Abstract
In this paper the corrosion behaviour of copper in 5% (by weight) citr ic, sulphuric and hydrochloric acids is studied. The efficiency of 2-a mino-5-mercapto-1,3,4-thiadiazole (AMT) as a corrosion inhibitor is co mpared with the use of benzotriazole (BTA). The experimental technique s were weight loss, polarization curves, polarization resistance and e lectrochemical impedance spectroscopy. AMT showed greater inhibition e fficiency than BTA in sulphuric and hydrochloric acids. In citric acid AMT and BTA show a similar behaviour.