|Preferred IUPAC name
3D model (JSmol)
|Molar mass||294.350461 g/mol|
|Melting point||161 to 163 °C (322 to 325 °F; 434 to 436 K)|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
|what is ?)(|
Triphenylphosphine sulfide (IUPAC name: Triphenyl-λ5-phosphanethione) is the organophosphorus compound with the formula (C6H5)3PS, usually written Ph3PS (Ph = phenyl). It is a colourless solid, which is soluble in a variety of organic solvents.
- Ph2C2H2O + Ph3PS → Ph2C2H2S + Ph3PO
In analytical chemistry, triphenylphosphine is used for the analysis of certain kinds of sulfur compounds. Elemental sulfur (S8), as occurs in some oils, and labile organosulfur compounds, e.g. organic trisulfides, react with triphenylphosphine to give Ph3PS, which can be detected by gas chromatography.
- Codding, P. W.; Kerr, K. A. (1978). "Triphenylphosphine sulfide". Acta Crystallographica Section B. 34 (12): 3785. doi:10.1107/S0567740878012212.
- Darrin, L. Mayhew, Derrick L. J. Clive, "Triphenylphosphine Sulfide" in Encyclopedia of Reagents for Organic Synthesis, John Wiley, 2001, New York.doi:10.1002/047084289X.rt379 Article Online Posting Date: April 15, 2001