Used as a catalyst in organic synthesis, particularly in esterification and alkylation reactions, due to its strong acidic properties. It is also employed as an electrolyte in electrochemical devices, including batteries and fuel cells, because of its high ionic conductivity. Additionally, it serves as a solvent in various chemical processes, offering advantages in terms of stability and recyclability. Its applications extend to the field of green chemistry, where it is utilized as an environmentally friendly alternative to traditional solvents and catalysts.