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Inhibition of corrosion for medium carbon steel using the aqueous extract of saussurea costus at temperature of 35 °C
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This study investigates the corrosion inhibition of medium carbon steel in 1 M HCl using the weight loss method to analyze reaction kinetics and corrosion rates. Saussurea costus extract formed a protective layer on the metal surface, effectively mitigating acidic corrosion, with inhibition efficiency increasing at higher concentrations. Kinetic and thermodynamic adsorption studies revealed adsorption following the Langmuir isotherm via a physisorption mechanism, as confirmed by an adsorption free energy (ΔG°ads) of -38.35 kJ/mol. These findings provide valuable insights for developing efficient and sustainable acidic corrosion inhibitors.
Keywords: Saussurea costus, Corrosion inhibition; Carbon steel; Hydrochloric acid; Activation energy, Aqueous extract, Weight loss method.
Libyan Society for Research and Scientific Studies
Title: Inhibition of corrosion for medium carbon steel using the aqueous extract of saussurea costus at temperature of 35 °C
Description:
This study investigates the corrosion inhibition of medium carbon steel in 1 M HCl using the weight loss method to analyze reaction kinetics and corrosion rates.
Saussurea costus extract formed a protective layer on the metal surface, effectively mitigating acidic corrosion, with inhibition efficiency increasing at higher concentrations.
Kinetic and thermodynamic adsorption studies revealed adsorption following the Langmuir isotherm via a physisorption mechanism, as confirmed by an adsorption free energy (ΔG°ads) of -38.
35 kJ/mol.
These findings provide valuable insights for developing efficient and sustainable acidic corrosion inhibitors.
Keywords: Saussurea costus, Corrosion inhibition; Carbon steel; Hydrochloric acid; Activation energy, Aqueous extract, Weight loss method.
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