Experimental Study of Electric Conductivity of MPO3(M2WO4)–V2O5 (M = Na, K) Melts

The electric conductivity of binary eutectic oxide–salt composites KPO3–V2O5, NaPO3–V2O5, Na2WO4–V2O5, and K2WO4–V2O5 has been studied. The behavior of the dependence of the conductivity logarithm and specific conductivity on the reciprocal temperature was determined. It was established that the 38 mol % NaPO3–62 mol % V2O5 oxide–salt composite has the highest electric conductivity and is promising for use as an electrolyte for obtaining refractory metals and in chemical current sources.