Journal of Surface Science and Technology

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The Inhibitive Action of Tolyl-3,3 Dimethyl Thiourea on the Corrosion of Mild Steel in Brine Water


Affiliations
1 Centre for Nanobiotechnology, VIT University, Vellore-632 014, India
2 Institute of Tribology, Hefei University of Technology, Hefei, Anhui-230 009, China
3 School of Mechanical & Building Sciences, VIT University, Vellore-632 014, India
     

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The inhibitive action of Tolyl-3,3 dimethyl thiourea (TDMTU) on corrosion of mild steel in brine water (5% NaCl) has been studied using weight loss, gasometric measurements, potentiodynamic polarization and impedance studies. The studies clearly indicated that TDMTU acted as cathodic inhibitor. The adsorption of the compound on mild steel surface obeyed Temkin's adsorption isotherm. Diffused reflectance spectra and SEM images confirmed the formation of adsorbed film of inhibitor on metal.

Keywords

Corrosion Inhibitor, Thio Compounds, Impedance Measurements, Adsorption.
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  • The Inhibitive Action of Tolyl-3,3 Dimethyl Thiourea on the Corrosion of Mild Steel in Brine Water

Abstract Views: 333  |  PDF Views: 1

Authors

S. Karthikeyan
Centre for Nanobiotechnology, VIT University, Vellore-632 014, India
Xianguo Hu
Institute of Tribology, Hefei University of Technology, Hefei, Anhui-230 009, China
P. A. Jeeva
School of Mechanical & Building Sciences, VIT University, Vellore-632 014, India
S. Harikumar
Centre for Nanobiotechnology, VIT University, Vellore-632 014, India
S. Narayanan
School of Mechanical & Building Sciences, VIT University, Vellore-632 014, India

Abstract


The inhibitive action of Tolyl-3,3 dimethyl thiourea (TDMTU) on corrosion of mild steel in brine water (5% NaCl) has been studied using weight loss, gasometric measurements, potentiodynamic polarization and impedance studies. The studies clearly indicated that TDMTU acted as cathodic inhibitor. The adsorption of the compound on mild steel surface obeyed Temkin's adsorption isotherm. Diffused reflectance spectra and SEM images confirmed the formation of adsorbed film of inhibitor on metal.

Keywords


Corrosion Inhibitor, Thio Compounds, Impedance Measurements, Adsorption.