Comment on "Thermal Analysis and X-Ray Diffraction Study on LiKSO4: A New Phase Transition

In a recent paper (J. Solid State Chem. 148, 316 (1999)) Solans et al. presented the structure of different phases of LiKSO4 and a new phase transition at about 226 K (268 K on heating). We believe that most of the results commented on are not credible.