Organic synthesis Triphenylphosphine sulfide is useful for the conversion of
epoxides to the corresponding
episulfides: : It also reacts with
ketenes to form
thioketenes: :
Analytical chemistry In
analytical chemistry, triphenylphosphine is used for the analysis of certain kinds of sulfur compounds. Elemental sulfur (), as occurs in some oils, and labile
organosulfur compounds, such as organic
trisulfides, react with
triphenylphosphine to give , which can be detected by
gas chromatography. ==References==