Used as a phase-transfer catalyst in organic synthesis, facilitating reactions between compounds in different phases. It is particularly effective in nitration reactions, where it helps introduce nitro groups into organic molecules. Also employed in the preparation of diazonium salts, which are intermediates in the production of dyes and pigments. In electrochemistry, it serves as an electrolyte additive to enhance the performance of batteries and capacitors. Additionally, it is utilized in the synthesis of pharmaceuticals and agrochemicals, where precise control of reaction conditions is crucial. Its role in stabilizing reactive intermediates makes it valuable in various industrial chemical processes.