THERMOCHEMICAL STUDY OF SOLID STATE REACTIONS BETWEEN BaO AND V2O5

Abstract

The solid state non isothermal synthesis of mixed oxides of barium and vanadium and their subsequent thermoanalytical behaviour at high temperatures have been performed with derivatograph . Solid - Solid interactions between BaO and V2O5 occurred resulting in the formation of V3O7 , BaVO3 ,V3O5 , and Ba5V5O15 . their identities have been confirmed by X- ray diffractometry and their thermal stabilities, melting temperatures , and stoichiometric formation equations have been established. In all synthesis and decomposition reactions oxygen was liberated .The X- ray diffraction and thermal analysis of pure commercial BaO have also been carried out .