Thermochemische Untersuchungen zu den Systemen SE2O3-SeO2 IV. Lösungskalorimetrie der SE2SexO3+2x-Phasen (SE = Nd, Sm, Y) / Thermochemical Investigations on the Systems RE2O3-SeO2 IV. Solution Calorimetry of the Phases RE2SexO3+2x(RE =Nd, Sm, Y)

The solution enthalpies have been determined for the ternary phases RE₂SeₓO₃₊₂ₓ existing on the pseudo-binary section RE₂O₃-SeO₂ and for RE₂O₃ and SeO₂ in 4n HCl (RE =Nd, Sm, Y). From these date the enthalpies of formation of the ternary phases have been derived via suitable solution schemes on the basis of the known enthalpies of formation of RE₂O₃ and SeO₂.