in neat (no solvent) passing a stream of H2S over a mixt. of PCl3 and PBr5;; product poluted with a small amount of bromine; removal of Br2 on shaking with Hg; fractionation at reduced pressure;;
参考文献
Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences, , vol. 224, p. 1422 - 1423