Preparation of Al,Cr, Nb,Mo, and W Monophosphides from a Lithium Metaphosphate Melt

Synthesis of a series of phosphides (AlP, CrP, NbP, MoP, and WP) by reactions of powdered metals with a melt of lithium metaphosphate LiPO₃ was studied. Thermodynamic parameters (H⁰₂₉₈, S⁰₂₉₈, G⁰₂₉₈, and G⁰₁₂₇₃) of the reactions were calculated and their temperature modes were optimized on the basis of the standard thermodynamic characteristics of the initial substances and the reaction products. X-ray patterns of the powders of the obtained compounds are presented.