Standard enthalpy of formation of compounds of the Cd–Zr system

Thermodynamic properties of two intermetallic phases CdZr2(s) and Cd3Zr(s) in the binary Cd–Zr system have been investigated. The standard molar enthalpy of formation Δ f H 298 0 of CdZr2(s) and Cd3Zr(s) was obtained by measuring the reaction enthalpy of CdZr2(s), Cd3Zr(s) and Zr(s), respectively, using Cd(l) in a Calvet calorimeter. The values of Δ f H 298 0 of CdZr2(s) and Cd3Zr(s) at 298 K were found to be −(61.7 ± 1.2) kJ mol−1 and −(72.3 ± 0.9) kJ mol−1, respectively.