Thermodynamic properties and homogeneity regions of Tl6SCl4 and Tl5Se2Cl

In this activity system Tl-Tl 2 X-X (X = S, Se)are studied using emf measurements of concentration chains relative thallic electrode. The solid phase diagrams of these systems are clarified, homogeneity areas of the compounds Tl 6 SCl 4 and Tl 5 Se 2 Cl are determined. On the basis of emf measurement results, relative partial molar functions of thallium in alloys and standard integral thermodynamic functions (Δ G 0 (298 K), Δ H 0 (298 K), Δ S 0 (298 K)) of the ternary compounds Tl 6 SCl 4 and Tl 5 Se 2 Cl and phases of variable composition based on the latter are calculated.