Investigation of corrosion inhibition of low carbon steel using expired drug Levocetirizine as a potential corrosion inhibitor in 0.5 M H2SO4 medium
Abstract
The inhibitory properties of low carbon steel ( LCS ) surface in 0.5 M H 2 SO 4 medium were assessed using expired Levocetirizine ( LCZN ) drug through chemical and electrochemical methods. Gravimetric analysis demonstrated the drug's ability to inhibit corrosion on LCS surface with 95.16 percentage inhibition efficiency (%IE). Polarization results demonstrated that LCZN acted as a mixed-type inhibitor with IE. of 97.05%. Impedance analysis further substantiated the presence of LCZN adsorption on the LCS surface. The inhibition efficiency is interpreted through the adsorption phenomenon. Several investigations, such as FT-IR, (SEM)-EDS, and TEM analysis unveiled adsorption on the LCS surface. Further validations carried out using quantum chemical calculations.
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