Abstract

Abstract Some surfactants were synthesized, its chemical structures were checked using Fourier transform infrared spectroscopic (FT-IR). The investigation of inhibition efficiency (IE%) for dissolution of (LCS) in 1.0 M HCl with and without various concentrations of these compounds were done using electrochemical and non-electrochemical methods. Measured data depends on temperature, concentration, and nature of the substance. These compounds were adsorbed on LCS surface following Temkin isotherm. Polarization studies illustrated that these surfactants act as mixed inhibitors (anodic and cathodic). The effect of these inhibitors on LCS surface morphology’s was detected by Scanning Electron Microscope (SEM), ATR-IR (Attenuated total reflection Infra-red) and Atomic Force Microscopy (AFM) techniques. The parameters in an activated state of LCS were studied and estimated. All data techniques were compatible and matched.

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