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Corrosion inhibition mechanism of carbon steel by sodium N,N‐diethyl dithiocarbamate in hydrochloric acid solution

Fan Hong‐bo (Department of Chemistry, Huazhong University of Science and Technology, China)
Wang Hui‐long (Department of Chemistry, Huazhong University of Science and Technology, China)
Guo Xing‐peng (Department of Chemistry, Huazhong University of Science and Technology, China)
Zheng Jia‐shen (Department of Chemistry, Huazhong University of Science and Technology, China)

Anti-Corrosion Methods and Materials

ISSN: 0003-5599

Article publication date: 1 August 2002

563

Abstract

The effect of sodium N,N‐diethyl dithiocarbamate (SDEDTC) on the corrosion of carbon steel in 0.5mol/L hydrochloric acid (HCl) solution was studied using weight loss, potentiodynamic polarisation curves and impedance measurement methods. Experimental results revealed that SDEDTC acted as an inhibitor in acid environments. Moreover, the compound was a mixed‐type inhibitor, acting predominantly as a cathodic inhibitor. Inhibition efficiency increased with increasing SDEDTC concentration at different temperatures. The corrosion inhibition mechanism of SDEDTC for carbon steel in HCl solution was also investigated by impedance techniques.

Keywords

Citation

Hong‐bo, F., Hui‐long, W., Xing‐peng, G. and Jia‐shen, Z. (2002), "Corrosion inhibition mechanism of carbon steel by sodium N,N‐diethyl dithiocarbamate in hydrochloric acid solution", Anti-Corrosion Methods and Materials, Vol. 49 No. 4, pp. 270-276. https://doi.org/10.1108/00035590210431782

Publisher

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MCB UP Ltd

Copyright © 2002, MCB UP Limited

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