Before revision: Synthesis Heating powdered lutetium and red phosphorus in an inert atmosphere or vacuum: Lu + P -> LuP It can also be formed in the reaction of lutetium and phosphine.
After revision: Synthesis Heating powdered lutetium and red phosphorus in an inert atmosphere or vacuum: 4Lu + P4 -> 4LuP It can also be formed in the reaction of lutetium and phosphine.