Used as a source of soluble fluoride in organic synthesis, particularly in reactions requiring mild fluorination conditions. Acts as a phase-transfer catalyst, facilitating the transfer of fluoride ions into organic phases for nucleophilic substitution reactions. Commonly employed in the preparation of fluorinated compounds in pharmaceutical and agrochemical industries. Also utilized in the deprotection of silyl ethers in synthetic chemistry due to its ability to cleave silicon-oxygen bonds efficiently. Its hydrated form offers improved stability and handling compared to anhydrous versions, making it suitable for laboratory-scale applications where controlled fluoride release is needed.