Used as an ionic liquid in catalytic reactions, particularly in alkylation and acylation processes due to its high thermal stability and low volatility. Enhances reaction efficiency in Friedel-Crafts reactions by acting as both solvent and catalyst. Employed in electrochemical applications such as batteries and capacitors because of its good ionic conductivity and wide electrochemical window. Also utilized in separation processes, including extraction of metals and desulfurization of fuels, thanks to its selective solvation properties.