Heat capacity of the MVO4 (M = Al, Ga, In, Tl) orthovanadates

摘要

The heat capacity of InVO4 has been determined by differential scanning calorimetry in the temperature range 339-1089 K. The experimental C (p) (T) data have been used to evaluate the thermodynamic functions of indium orthovanadate: enthalpy increment HA degrees(T)-HA degrees(339 K), entropy change SA degrees(T)-SA degrees(339 K), and reduced Gibbs energy Dcurrency signA degrees(D cent). The specific heats of GaVO4 and TlVO4 have been evaluated.