Fluorine fluorosulfate is an inorganic compound of fluorine, oxygen, and sulfur with the chemical formula .
The compound can be prepared by the reaction of sulfur trioxide and fluorine at a temperature of 200 ðC:
Also, a reaction of peroxydisulfuryl difluoride with fluorine.
The compound is a strong oxidizing agent that is also potentially explosive.
At 200 ðC the compound decomposes without explosion.
The compound reacts with bases to form the fluorosulfonate anion, the fluoride ion, water, and oxygen:
It reacts with potassium iodide to form potassium fluorosulfonate, potassium fluoride, and iodine:
Fluorine fluorosulfate reacts with , , , and and also with , , and . All compounds react exothermically, and sometimes explosively, between 80âÂÂ298 K.