The Effect of MethyleCarbazodithoate" Corrosion inhibitor on Corrosion Behaviour of Low Carbon Steels in Acid Solution at Different Temperatures
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Corrosion, Corrosion inhibition, Mild steel, Methyl carbazodithoate, Sulphuric acid
Abstract
The purpose of this study is to investigate the effect of an organic compound inhibitor, namely "Methyl Carbazodithoate ", on the corrosion of low carbon steel (mild steels) in 2.0 M Sulphuric acid (H?SO?) solution by weight loss measurements and over the temperature range 30 - 50 °C. The effects of organic compound inhibitor concentration on the corrosion rate of low carbon steel have been found to increase with inhibitor concentration (7.5x10?? - 4.0x10?³) M at both temperature 30 °C and 50 °C. A detailed analysis of the experimental data was performed to determine the best models of isothermal equilibrium data sets for the used inhibitor. The results were fit to all used adsorption isotherms including; Langmuir isotherm and Temkin isotherm, while a slight improvements were observed when using an organic inhibitor at temperature of 50 °C. The standard free energies of adsorption are calculated. Finally, the inhibition efficiencies of "Methyl Carbazodithoate" obtained from the all various measurements were in good agreement.
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