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

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.

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