BENZOIC ACID DERIVATIVES AS EFFECTIVE CORROSION INHIBITORS FOR CARBON STEEL IN 3.5 % SODIUM CHLORIDE SOLUTION.

Abdel-satar, Nour E.; Fouda, A. S.; Khalil, E.M. M.; Mohamed, Ahmed S.

doi:10.21608/absb.2017.8109

BENZOIC ACID DERIVATIVES AS EFFECTIVE CORROSION INHIBITORS FOR CARBON STEEL IN 3.5 % SODIUM CHLORIDE SOLUTION.

Document Type : Original Article

Authors

¹ Chemistry Department, Faculty of Science, Ain Shams University, Cairo, Egypt

² Chemistry Department, Faculty of Science, Mansoura University, Mansoura-35516, Egypt

³ Chemistry Department, Faculty of Science, Helwan University, Helwan, Cairo, Egypt

⁴ Refining and Processing Department, Egyptian general petroleum corporation, Cairo, Egypt

10.21608/absb.2017.8109

Abstract

New corrosion compounds were prepared based on acryloyl chloride and the efficiency of the prepared compounds to inhibit carbon steel (CS) corrosion in 3.5% sodium chloride solution were studied through different electrochemical techniques [potentiodynamic polarization (PP), electrochemical impedance spectroscopy (EIS) and electron frequency modulation (EFM)] and Quantum chemical calculations. The results showed that the investigated compounds are working as good corrosion inhibitor compounds, the inhibition efficiency (%IE) increases as the compound concentration increase. The polarization data revealed that these compounds act as cathodic and mixed type compounds and are adsorbed on CS surface following Langmuir adsorption isotherm.

Keywords

Main Subjects