Triphenylphosphine
Title: Triphenylphosphine
CAS Registry Number: 603-35-0
Molecular Formula: C18H15P
Molecular Weight: 262.29
Percent Composition: C 82.43%, H 5.76%, P 11.81%
Line Formula: (C6H5)3P
Literature References: Prepd from phenylmagnesium bromide and phosphorus trichloride: Pfeiffer, Pietsch, Ber. 37, 4621 (1904); Sauvage, Compt. Rend. 139, 675 (1904); Dodonon, Medox, Ber. 61, 910 (1928); Denney et al., J. Am. Chem. Soc. 83, 1729 (1961).
Properties: Odorless monoclinic platelets or prisms from ether, mp 80.5°. bp >360° (in inert gas). d425 1.194; d480(liq) 1.075. For more physical constants see Forward et al., J. Chem. Soc. 1949, 5121. Is triboluminescent. Freely sol in ether; sol in benzene, chloroform, glacial acetic acid; less sol in alcohol; practically insol in water.
Melting point: mp 80.5°
Boiling point: bp >360°
Density: d425 1.194; d480(liq) 1.075
Use: In organic synthesis; polymerization initiator.

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