Mixing Enthalpy Estimation for CsX–PbX2 Melts (X = Cl, Br) by Differential Scanning Calorimetry.

A comparatively simple method for estimating the mixing enthalpy of melts by differential scanning calorimetry using standard equipment is proposed. The enthalpies of mixing of CsX–PbX₂ (X = Cl, Br) melts are determined by this method. The measured values of mixing enthalpy in the CsCl–PbCl₂ system are in good agreement with those obtained by means of independent measurements. For the CsBr–PbBr₂ system, the enthalpy of mixing was measured for the first time. The similar values of mixing enthalpy were found for both studied systems. [ABSTRACT FROM AUTHOR]