Paper Title
1-Butyl-3-Methylimidazolium Bromide as Corrosion Inhibitor for Copper Alloy in Acid Solution

Copper and its alloys have found a large number of applications in everyday life and industry due to their corrosion resistance, high thermic and electric conductivity. Inhibitors play and important role in the corrosion mitigation of different metals in specific corrosion environments. This is due to their availability and cost. Ionic liquids in particular adsorb on the metal‘s surface and isolate it from the corrosive environment. In this study we report the influence of 1-butyl-3- methylimidazolium bromide (BMIMBr) on the corrosion of copper in 2.5 M HNO3 solution, using the weight loss method at 30, 35 and 40 °C. The corrosion efficiency of 1-butyl-3-methylimidazolium bromide increased with increasing its concentration. The lowest corrosion rate of copper in 2.5 M HNOa solution (i.e. 2.0346 mm/year) was achieved with the addition of 0.7 vol.% inhibitor. Moreover, a decrease of the corrosion inhibition efficiency was observed with the increase of the temperature Keywords - Liquid Ionic, Corrosion, Copper Alloy, Weight Loss Method, Acid Solution;