Used as an ionic liquid in electrochemical applications such as batteries and capacitors due to its high ionic conductivity and thermal stability. Serves as a green solvent in organic synthesis, facilitating reactions like Heck coupling and hydrogenation by stabilizing catalysts. Employed in extraction processes for separating metals or biomolecules thanks to its tunable polarity and low volatility. Also applied in analytical chemistry as a buffer additive in chromatography to improve separation of polar compounds.