Used as an ionic liquid in electrochemical applications such as batteries and capacitors due to its high ionic conductivity and wide electrochemical stability window. It serves as a green solvent in organic synthesis, facilitating reactions like Heck coupling and hydrogenation with easy product separation and recyclability. Commonly employed in separation processes, including gas absorption, where it effectively captures CO₂ and SO₂ thanks to its tunable polarity and low vapor pressure. Also utilized in analytical chemistry as a matrix in mass spectrometry and as a stationary phase in gas chromatography. Its thermal stability and low flammability make it suitable for high-temperature industrial processes.