Bromine pentafluoride

Bromine pentafluoride
Structure and dimensions of the bromine pentafluoride molecule in the gas phase
Ball-and-stick model of bromine pentafluoride
Ball-and-stick model of bromine pentafluoride
Space-filling model of bromine pentafluoride
Space-filling model of bromine pentafluoride
Names
IUPAC name
Bromine pentafluoride
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.029.234 Edit this at Wikidata
EC Number
  • 232-157-8
RTECS number
  • EF9350000
UNII
UN number 1745
  • InChI=1S/BrF5/c2-1(3,4,5)6 checkY
    Key: XHVUVQAANZKEKF-UHFFFAOYSA-N checkY
  • InChI=1/BrF5/c2-1(3,4,5)6
    Key: XHVUVQAANZKEKF-UHFFFAOYAC
  • FBr(F)(F)(F)F
Properties
BrF5
Molar mass 174.894 g.mol−1
Appearance Pale yellow liquid
Density 2.466 g/cm3
Melting point −61.30 °C (−78.34 °F; 211.85 K)
Boiling point 40.25 °C (104.45 °F; 313.40 K)
Reacts with water
Structure
Square pyramidal
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
 Powerful oxidizer, corrosive, highly toxic, reacts violently with water to release HF[1]
GHS labelling:
GHS03: OxidizingGHS05: CorrosiveGHS06: ToxicGHS08: Health hazard
Danger
H271, H300+H310+H330, H314, H372
P210, P220, P221, P260, P264, P270, P271, P280, P283, P284, P301+P310, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P306+P360, P307+P311, P309+P311, P310, P314, P320, P321, P331, P363, P370+P378, P371+P380+P375, P403+P233, P405, P501
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 4: Very short exposure could cause death or major residual injury. E.g. VX gasFlammability 0: Will not burn. E.g. waterInstability 4: Readily capable of detonation or explosive decomposition at normal temperatures and pressures. E.g. nitroglycerinSpecial hazard W+OX: Reacts with water in an unusual or dangerous manner AND is oxidizer
4
0
4
W
OX
Flash point Non-flammable
NIOSH (US health exposure limits):
PEL (Permissible)
 none[1]
REL (Recommended)
 TWA 0.1 ppm (0.7 mg/m3)[1]
IDLH (Immediate danger)
 N.D.[1]
Safety data sheet (SDS) External MSDS[dead link‍]
Related compounds
Other anions
 Bromine monochloride
Other cations
 Chlorine pentafluoride
Iodine pentafluoride
Related compounds
 Bromine monofluoride
Bromine trifluoride
Supplementary data page
Bromine pentafluoride (data page)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Bromine pentafluoride, BrF5, is an interhalogen compound and a fluoride of bromine. It is a strong fluorinating agent.

BrF5 finds use in oxygen isotope analysis. Laser ablation of solid silicates in the presence of BrF5 releases O2 for subsequent analysis.[2] It has also been tested as an oxidizer in liquid rocket propellants and is used as a fluorinating agent in the processing of uranium.

  1. ^ a b c d NIOSH Pocket Guide to Chemical Hazards. "#0065". National Institute for Occupational Safety and Health (NIOSH).
  2. ^ Clayton, R.; Mayeda, T. K. (1963). "The use of bromine pentafluoride in the extraction of oxygen from oxides and silicates for isotopic analysis". Geochimica et Cosmochimica Acta. 27 (1): 43–48. Bibcode:1963GeCoA..27...43C. doi:10.1016/0016-7037(63)90071-1.