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Triphenylphosphine oxide

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Triphenylphosphine oxide Basic information
Triphenylphosphine oxide Chemical Properties
  • Melting point:150-157 °C(lit.)
  • Boiling point:360 °C
  • Density 1,212 g/cm3
  • vapor pressure <1 hPa (50 °C)
  • Flash point:180 °C
  • storage temp. Store at RT.
  • solubility methanol: 25 mg/mL, clear
  • form Crystalline Powder or Flakes
  • Specific Gravity1.212
  • color White to pink-brown
  • Water Solubility slightly soluble
  • BRN 745854
  • CAS DataBase Reference791-28-6(CAS DataBase Reference)
  • NIST Chemistry Reference(C6H5)3PO(791-28-6)
  • EPA Substance Registry SystemPhosphine oxide, triphenyl-(791-28-6)
Safety Information
  • Hazard Codes Xn,Xi
  • Risk Statements 22-36/37/38-52/53
  • Safety Statements 26-61-36
  • RIDADR 3077
  • WGK Germany 2
  • RTECS SZ1676000
  • Autoignition Temperature590 °C
  • TSCA Yes
  • HazardClass 9
  • PackingGroup III
  • HS Code 29310095
  • ToxicityLD50 orally in Rabbit: 685 mg/kg
MSDS
Triphenylphosphine oxide Usage And Synthesis
  • Chemical PropertiesWhite solid
  • UsesTriphenylphosphine oxide is a phosphine ligand used for coupling reactions, epoxidations, and Michael reactions
  • DefinitionChEBI: A phosphine oxide in which the substituents on phosphorus are three phenyl groups.
  • Purification MethodsIt crystallises from absolute EtOH and is dried in vacuo. The gold chloride complex has m 177.5-178.5o. [Addison & Sheldon J Chem Soc 2705 1956, Cox & Westheimer J Am Chem Soc 80 5441 1958, Beilstein 16 III 864, 16 1011.]
Triphenylphosphine oxide Preparation Products And Raw materials
Triphenylphosphine oxide(791-28-6)Related Product Information
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