Inhibition of 1,2-Ethane-bis-(dimethyl benzyl ammonium bromide) for Mild Steel Corrosion in Hydrochloric Acid Solution

Inhibition of 1,2-ethane-bis-(dimethyl benzyl ammonium bromide) for mild steel corrosion in HCl solution were studied by weight loss measurements, potentiodynamic polarization measurements, SEM and AFM techniques. Weight loss measurements indicate that the 1,2-ethane-bis-(dimethyl benzyl ammonium bromide) acts as a good inhibitor for mild steel corrosion in HCl solution. The adsorption of 1,2-ethane-bis-(dimethyl benzyl ammonium bromide) on mild steel surface obeys Langmuir adsorption isotherm and the corrosion inhibition depends on chemisorptions. Polarization curves measurements show that the 1,2-ethane-bis-(dimethyl benzyl ammonium bromide) is a mixed-type inhibitor. In this work, the effect of acid concentration and immersion time were also investigated.