Tetrabutylammonium triflate is widely used as a phase-transfer catalyst in organic synthesis, facilitating the transfer of reactants between immiscible phases. It is particularly effective in nucleophilic substitution reactions, where it enhances the reactivity of anions in non-polar solvents. Additionally, it serves as an electrolyte in electrochemical applications, such as in capacitors and batteries, due to its high ionic conductivity and stability. In polymerization processes, it acts as a catalyst or co-catalyst, enabling the synthesis of various polymers with controlled molecular weights. Its role in facilitating reactions and improving efficiency makes it valuable in both industrial and research settings.