Used as an electrolyte in electrochemical applications, particularly in supercapacitors and batteries, due to its high ionic conductivity and stability. It is also employed in organic synthesis as a phase-transfer catalyst, facilitating reactions between compounds in different phases. Additionally, it serves as a supporting electrolyte in non-aqueous systems for electrochemical studies, enabling precise control of ionic strength and conductivity. Its thermal stability and solubility in organic solvents make it suitable for use in various advanced material research and development processes.