Formula BrF3 Boiling point 125.7 °C Density 2.8 g/cm³ | Molar mass 136.9 g/mol Melting point 8.77 °C | |
 | ||
Related compounds Thermodynamicdata Phase behavioursolid–liquid–gas Appearance straw-coloured liquid; hygroscopic | ||
Bromine trifluoride brf3 lewis dot structure
Bromine trifluoride is an interhalogen compound with the formula BrF3. It is a straw-coloured liquid with a pungent odor. It is soluble in sulfuric acid but explodes on contact with water and organic compounds. It is a powerful fluorinating agent and an ionizing inorganic solvent. It is used to produce uranium hexafluoride (UF6) in the processing and reprocessing of nuclear fuel.
Contents
- Bromine trifluoride brf3 lewis dot structure
- Bromine trifluoride test 3 31 2011
- Synthesis
- Structure
- Chemical properties
- References
Bromine trifluoride test 3 31 2011
Synthesis
Bromine trifluoride was first described by Paul Lebeau in 1906, who obtained the material by the reaction of bromine with fluorine at 20 °C:
Br2 + 3 F2 → 2 BrF3The disproportionation of bromine monofluoride also gives bromine trifluoride:
3 BrF → BrF3 + Br2Structure
Like ClF3 and IF3, the BrF3 molecule is T-shaped. In the VSEPR formalism, the bromine center is assigned two electron pairs. The distance from the bromine each axial fluorine is 1.81 Å and to the equatorial fluorine is 1.72 Å. The angle between an axial fluorine and the equatorial fluorine is slightly smaller than 90° — the 86.2° angle observed is due to the repulsion generated by the electron pairs being greater than that of the Br-F bonds.
Chemical properties
BrF3 is a fluorinating agent, but less reactive than ClF3. The liquid is conducting, owing to autoionisation:
2 BrF3 ⇌ BrF2+ + BrF4−Many ionic fluorides dissolve readily in BrF3 forming fluoroanions:
KF + BrF3 → KBrF4
