NICOTINAMIDE-BASED IONIC LIQUID AS A POTENTIAL COPPER CORROSION INHIBITOR

In this paper, the possibility of using newly synthesized ionic liquid based on nicotinamide as a potential inhibitor copper corrosion in an acidic sulfate medium was investigated. Inhibition efficiency butyl-nicotinamide, [C4Nic]Br (pH=3) 0.1 mol/dm3 sodium sulphate solution analyzed potentiostatic polarization measurements and electrochemical impedance spectroscopy (EIS). It found that investigated had inhibitory properties media. The effect test compound is manifested by rapid spontaneous adsorption molecules surface following Langmuir’s isotherm. As result, cathodic current decreases, well resistance system, increases compared with basic solution. inhibition largely depends applied concentration.