Tetraphosphorus pentasulfide

Tetraphosphorus pentasulfide, P4S5, is obtained when a solution of sulfur in CS2 reacts with P4S3 in the presence of I2. Tetraphosphorus heptasulfide, P4S7, is one of the products obtained when phosphorus and sulfur are heated in a sealed tube. Neither P4S5 nor P4S7 is commercially important. Tetraphosphorus decasulfur, P4S10, is prepared by reaction of a stoichiometric mixture of the elements. [Pg.503]

NiSe03 NICKEL SELENITE 1226 P4S5 TETRAPHOSPHORUS PENTASULFIDE 1269... [Pg.1914]

A widely used sulfurization agent is tetraphosphorus decasulfide, commonly named phosphorus pentasulfide. This reagent has been used with j -diketones, leading to 1,2-dithiolium salts.Yields seem to be improved when a mild oxidizing agent such as iodine is added. A side reaction, common when phosphorus pentasulfide is used, is the dealkyla-... [Pg.156]

Write the chemical formula for each of the following compounds (a) diboron trioxide, (b) dinitrogen pentasulfide, (c) phosphorus triiodide, (d) sulfur tetrachloride, (e) silicon sulfide, (f) hydrogen sulfide, (g) tetraphosphorus hexoxide. [Pg.173]

Write a formula for each molecular compoimd. (a) carbon monoxide (b) disulfur tetrafluoride (c) dichlorine monoxide (d) phosphorus pentafluoride (e) boron tribromide (f) diphosphorus pentasulfide 74. Write a formula for each molecular compound. (a) chlorine monoxide (b) xenon tetroxide (c) xenon hexafluoride (d) carbon tetrabromide (e) diboron tetrachloride (f) tetraphosphorus triselenide... [Pg.157]