Diphenylphosphine , 95% , 829-85-6

Synonym(s):
HPPh₂;Ph₂PH

CAS NO.：829-85-6

Empirical Formula: C12H11P

Molecular Weight: 186.19

MDL number: MFCD00003040

EINECS: 212-591-4

PRODUCT Properties

• Melting point: -14.5 °C
• Boiling point: 280 °C(lit.)
• Density: 1.07 g/mL at 25 °C(lit.)
• vapor pressure: 2 mm Hg ( 110 °C)
• refractive index: n20/D 1.625(lit.)
• Flash point: -18°C (Hexane)
• storage temp.: 2-8°C
• solubility: Chloroform
• form: liquid
• pka: diphenylphosphine is weakly basic. The pKa of the protonated derivative is 0.03.
• color: colorless
• Specific Gravity: 0.68
• Water Solubility: Miscible with ethanol, ether, benzene, concentrated hydrochloric acid. Immiscible with water.
• Sensitive: Air & Moisture Sensitive
• Hydrolytic Sensitivity: 8: reacts rapidly with moisture, water, protic solvents
• BRN: 742504
• InChIKey: GPAYUJZHTULNBE-UHFFFAOYSA-N
• CAS DataBase Reference: 829-85-6(CAS DataBase Reference)
• NIST Chemistry Reference: Phosphine, diphenyl-(829-85-6)

Description and Uses

Diphenylphosphine acts as an intermediate in the preparation of diphenylphosphide derivatives, phosphonium salts, phosphine ligands and Wittig-Horner reagents. The presence of hydrogen atom bonded to phosphorus undergoes Michael-like addition to activated alkenes. It is involved in the preparation of 1,2-bis(diphenylphosphino)ethane and (phenyl-(phenylmethyl)phosphoryl)benzene. Further, it is used in the synthesis of aminophosphines and chiral palladacycles with N-heterocyclic carbene ligands as catalysts.

Safety

• Symbol(GHS): GHS02,GHS07
• Signal word: Danger
• Hazard statements: H250-H315-H319-H335
• Precautionary statements: P210-P222-P231+P232-P302+P352-P305+P351+P338-P370+P378
• Hazard Codes: F,Xi
• Risk Statements: 17-36/37/38
• Safety Statements: 26-36
• RIDADR: UN 2845 4.2/PG 1
• WGK Germany: 3
• F: 8-10-13-23
• HazardClass: 4.2
• PackingGroup: I
• HS Code: 29319090