Abstract
Schiff base (E)-2-Furan-2-ylmethyleneamino acetic acid (FMAA) was prepared and investigated as inhibitor for corrosion protection of soft steel in hydrochloric acid medium. Mass change measurement and electrochemical technique employed for corrosion studies. Inhibitor protects the metal from corrosion up to maximum efficiency of 95.58 % at concentration of 0.004 M. Various activation parameters were calculated for corrosion of soft stell with different temperature. Soft-steel corrosion protection established via Langmuir adsorption isotherm from this; thermodynamical adsorption parameters like Kads, adsorption free energy of (∆G0ads), are co-related to the soft steel deterioration protection. Tafel polarization curves reveal, FMAA exhibited mixed nature inhibitor. Modification of tested metal face morphology characterized using Scanning Electron Microscopy (SEM). Interaction of the FMAA molecules on soft steel face was confirmed through FT-IR analysis.
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