Used as a fluorinating agent in organic synthesis, particularly for the introduction of fluorine into aromatic compounds. It is effective in electrophilic fluorination reactions due to its ability to release fluorine under controlled conditions. Also employed in the preparation of other fluorinated antimony compounds used in catalysis and materials science. Its high thermal stability makes it suitable for use in high-temperature fluorination processes. Additionally, it finds application in the development of specialty glasses and ceramics where fluorine incorporation is required.