Corrosion Inhibition Effect of Triazole Derivatives to Carbon Steel in Hydrochloric Acid Solution

J Chin Soc Corr Pro

2004, Vol. 24

Issue (5): 306-310 DOI:

Research Report

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Corrosion Inhibition Effect of Triazole Derivatives to Carbon Steel in Hydrochloric Acid Solution

Huilong Wang

大连理工大学化学系288信箱

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Abstract Two kinds of new triazole compounds were synthesized. Their inhibiting behavior on carbon steel in 1.0mol/L hydrochloric acid solutio was investigated by means of weight loss, potentiodynamic polarization and AC impedance methods. The results show that the triazole derivatives suppress both the anosic and cathodic process and the inhibition effect is caused by geometrical blocking of the metal surface by adsorbed inhibiting species. The investigated triazole compounds inhibit corrosion by adsorption mechanis and the adsorption leads to the formation of a protective chemisorbed film on the metal surface which suppresses the corresponding corrosion reaction. The synthesized triazole compounds are found to be excellent corrosion inhibitor for carbon steel in hydrochloric acid.

Key words: triazole compound carbon steel corrosion inhibitor

Received: 28 April 2003

ZTFLH:

TG174.42

Corresponding Authors: Huilong Wang E-mail: hlwang@dlut.edu.cn

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Cite this article:

Huilong Wang. Corrosion Inhibition Effect of Triazole Derivatives to Carbon Steel in Hydrochloric Acid Solution. J Chin Soc Corr Pro, 2004, 24(5): 306-310 .

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y2004/V24/I5/306

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