Used as an ionic liquid in electrochemical applications such as batteries and capacitors due to its high ionic conductivity and thermal stability. It serves as a solvent or electrolyte component in dye-sensitized solar cells and fuel cells, enhancing charge transfer efficiency. Also employed in separation processes, including extraction of metals and desulfurization of fuels, thanks to its low volatility and tunable solvation properties. Its non-volatile nature makes it suitable for use in green chemistry applications where minimizing environmental impact is important.