Used as an ionic liquid in electrochemical applications such as batteries and capacitors due to its high thermal stability and wide electrochemical window. Its low volatility and good ionic conductivity make it suitable for use in fuel cells and solar cells. Commonly employed as a solvent in organic synthesis where non-volatile, polar media are required. Also investigated in separation processes, including extraction of metals and desulfurization of fuels. Shows potential in green chemistry applications by replacing volatile organic solvents.