Phosphorus tribromide Specifications: 1) CAS #: 7789-60-8 2) Other name: Tribromophosphine 3) Molecular formula: PBr3 4) Molecular weight: 270.69 5) Appearance: Colorless and Clear liquid 6) Melting point: -40°C 7) Boiling point: 175°C 8) Relative density: 2.85 9) Refractive index: 1.697 10)Content: ≥99% 11) Nonvolatile: ≤50ppm