Phosphorus tribromide

Phosphorus tribromide

Names
IUPAC name Phosphorus tribromide
Other names phosphorus(III) bromide, phosphorous bromide, tribromophosphine
Identifiers
CAS Number	7789-60-8 Y
3D model (JSmol)	Interactive image
ChemSpider	23016 Y
ECHA InfoCard	100.029.253
EC Number	232-178-2
PubChem CID	24614
RTECS number	TH4460000
UNII	58R3866PUA Y
CompTox Dashboard (EPA)	DTXSID7064869
InChI InChI=1S/Br3P/c1-4(2)3 Y Key: IPNPIHIZVLFAFP-UHFFFAOYSA-N Y
SMILES BrP(Br)Br
Properties
Chemical formula	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)
Solubility in water	rapid hydrolysis
Refractive index (nD)	1.697
Viscosity	0.001302 Pas
Structure
Molecular shape	trigonal pyramidal
Hazards
GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H314, H335
Precautionary statements	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)	3 0 2 W
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). Y verify (what is YN ?) Infobox references

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.