Chemistry and Materials Research
The Inhibition Effect of Succinic Acid on Corrosion of Low Carbon Steel in Hydrochloric Acid at Different Temperatures
Abstract
The corrosion inhibition of ASTM-A240 201 Stainless Steel sheets (LCS) in 1M HCl solution in the presence of Succinic acid at temperature (20,30,40,50,60)°C at concentration between (0.1-10) ppm for two hours were studied using weight loss method. Results show that the inhibition efficiency was increased with the increase of inhibitor concentration and increased with the increase of temperature up to 60ºC . Activation parameters of the corrosion process such as activation energies Ea, activation enthalpies ΔH, and activation entropies ΔS, were calculated. The adsorption of inhibitor follows Langmuir isotherm. Maximum inhibition efficiency obtained was about 96% at 60ºC in the 10 ppm inhibitor concentration
Keywords: Corrosion, Corrosion Rate, Weight loss method, Inhibitor, Corrosion Inhibition, Inhibitor Efficiency, LCS (low carbon steel) , green corrosion inhibitors.
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ISSN (Paper)2224-3224 ISSN (Online)2225-0956
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