Bromine(I) fluorosulfonate

Bromine(I) fluorosulfonate

Names
Other names Bromine(I) fluorosulfate [1] , bromine fluorosulfate
Identifiers
CAS Number	13997-93-8  Y
3D model (JSmol)	Interactive image
ChemSpider	67033872  N
PubChem CID	13267198
InChI InChI=1S/BrFO3S/c1-5-6(2,3)4 Key: BWQHCHYXXFFAKU-UHFFFAOYSA-N
SMILES O=S(=O)(OBr)F
Properties
Chemical formula	BrFO3S
Molar mass	178.96 g·mol−1
Appearance	blackish-red liquid
Density	2.60 g/cm3
Boiling point	120.5 °C
Solubility in water	reacts with water
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Bromine(I) fluorosulfonate is an inorganic compound of bromine, sulfur, fluorine, and oxygen with the chemical formula BrSO₃F. This is a monovalent compound of bromine from the group of fluorosulfonates.

Synthesis

Similarly with other halogenofluorosulfonates, the reaction of bromine with peroxydisulfuryl difluoride produces the compound: ^{[2] [3]}

Br₂ + S₂O₆F₂ → 2BrSO₃F

The reduction of bromine(III) fluorosulfonate also yields bromine(I) fluorosulfonate: ^[4]

Br(SO₃F)₃ + Br₂ → 3BrSO₃F

Chemical properties

Bromo(I) fluorosulfonate is a blackish-red, viscous, hydrolysis-sensitive liquid that reacts violently with water. Upon cooling, it solidifies into a glassy state.

Bromo(I) fluorosulfonate reacts with iodine(I) fluorosulfonate at temperatures above 50 °C to form dibromoiodofluorosulfonate: ^[5]

2BrSO₃F + ISO₃F → IBr₂(SO₃F)₃

See also

• Iodine fluorosulfate
• Fluorine fluorosulfate
• Chlorine fluorosulfate
• Triiodine fluorosulfate

References

1. Earl, Boyd L.; Hill, Brian K.; Shreeve, Jean'ne M. (1 December 1966). "Reactions of Bromine(I) Fluorosulfate with Simple Inorganic Molecules and Polyfluoroolefins. A Novel Route to Perfluoro-2,3-butanedione". Inorganic Chemistry . 5 (12): 2184–2186. doi:10.1021/ic50046a024. ISSN   0020-1669 . Retrieved 18 August 2025.
2. Cotton, F. Albert (2009). Progress in Inorganic Chemistry: Volume 14. New York: John Wiley & Sons. p. 65. ISBN   978-0-470-16658-1 . Retrieved 14 August 2025.
3. Brauer, Georg (1975). Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume I (PDF) (3., umgearb. Aufl ed.). Stuttgart: Ferdinand Enke. p. 339. ISBN   3-432-02328-6 . Retrieved 14 August 2025.
4. Roberts, John E.; Cady, George H. (1 January 1960). "Halogen Fluorosulfonates BrSO₃F, Br(SO₃F)₃ and I(SO₃F)₃". Journal of the American Chemical Society . 82 (2): 352–353. Bibcode:1960JAChS..82..352R. doi:10.1021/ja01487a023. ISSN   0002-7863 . Retrieved 14 August 2025.
5. Niedenzu, Kurt; Zimmer, Hans (2013). Annual Reports in Inorganic and General Syntheses (PDF). Academic Press. p. 109. ISBN   978-1-4832-1388-0 . Retrieved 14 August 2025.