The heat capacity and derived thermophysical properties of In2O3 from 0 to 1000 K

Abstract

The heat capacity from 5 to 350K of In2O3 has been measured by adiabatic calorimetry. For the thermophysical properties at room temperature Cop(298.15 K) = (99.08 +/- 0.09) J mol -1 K -1 and So(298.15 K) = (101.80 +/- 0.06) J mol-1 K-1 have been derived. Enthalpy increments relative to 298.15 K have been measured by drop calorimetry from 502 to 959.2 K: [Ho(T)-Ho(298.15 K)}/J mol-1=109.1383(T/K)+13.73786 x 10-3(T/K)2 +16.22947 x 105(T/K)-1-39,204.2.The thermodynamic functions, including the formation properties [Delta]fHo and [Delta]fGo(T), have been derived for temperatures up to 1000K.