SYNTHESIS AND THERMOCHEMISTRY OF TELLURITES OF SOME s-d ELEMENTS

Tellurites of some s- d- elements have been synthesised for the first time by solid- phase method. Isobaric heat capacity, on the basis of which the dependence equations Cp 0 f( T) were selected and thermodynamic functions were determined, was studied by the method of dynamic calorimetry in the range of 298,15- 673.. The.- shaped effects: Na2Zn( TeO3) 2 ( 348, 523 K), CaZn( TeO3) 2 ( 348, 473 K), MgCd( TeO3) 2 ( 523 K), CaCd( TeO3) 2 ( 323, 523 K), connected, probably, with phase transition of the second order was observed on dependence diagram Cp 0 f(