Phosphorus tribromide

Phosphorus tribromide
Phosphorus tribromide
Phosphorus tribromide
Phosphorus tribromide
Names
IUPAC name
Phosphorus tribromide
Other names
phosphorus(III) bromide,
phosphorous bromide,
tribromophosphine
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.029.253 Edit this at Wikidata
EC Number
  • 232-178-2
RTECS number
  • TH4460000
UNII
  • InChI=1S/Br3P/c1-4(2)3 checkY
    Key: IPNPIHIZVLFAFP-UHFFFAOYSA-N checkY
  • BrP(Br)Br
Properties
PBr3
Molar mass 270.69 g/mol
Appearance clear, colourless liquid
Density 2.852 g/cm3
Melting point −41.5 °C (−42.7 °F; 231.7 K)
Boiling point 173.2 °C (343.8 °F; 446.3 K)
rapid hydrolysis
1.697
Viscosity 0.001302 Pas
Structure
trigonal pyramidal
Hazards
GHS labelling:
GHS05: CorrosiveGHS07: Exclamation mark
Danger
H314, H335
P260, P261, P264, P271, P280, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P312, P321, P363, P403+P233, P405, P501
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 3: Short exposure could cause serious temporary or residual injury. E.g. chlorine gasFlammability 0: Will not burn. E.g. waterInstability 2: Undergoes violent chemical change at elevated temperatures and pressures, reacts violently with water, or may form explosive mixtures with water. E.g. white phosphorusSpecial hazard W: Reacts with water in an unusual or dangerous manner. E.g. sodium, sulfuric acid
3
0
2
Related compounds
Other anions
phosphorus trifluoride
phosphorus trichloride
phosphorus triiodide
Other cations
nitrogen tribromide
arsenic tribromide
antimony tribromide
Related compounds
phosphorus pentabromide
phosphorus oxybromide
Supplementary data page
Phosphorus tribromide (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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Phosphorus tribromide is a colourless liquid with the formula PBr3. The liquid fumes in moist air due to hydrolysis and has a penetrating odour. It is used in the laboratory for the conversion of alcohols to alkyl bromides.