  Very recently Leitner et al. [Thermochimica Acta 572 (2013) 1-5] have tried
to extract the thermodynamic data of rock-salt ZnO from ab initio and
experimental data available in the literature. In this Comment we show that
neglecting (i) the strongly pronounced kinetic features of the pressure-induced
phase transition in ZnO at room temperature and (ii) results of calorimetric
measurements available in the literature [Russ. Chem. Bull. 59 (2010) 325-328]
makes the proposed set of thermodynamic functions completely incorrect.
