The thermal decomposition kinetics of formation of bone shaped BaTiO3 from barium titanyl oxalate (BTO) and the effect of doping of potassium titanyl oxalate (1 x 10(-4) mol%) with BTO upon the reaction pathway and the mechanism were studied at four different heating rates: 2, 5, 7 and 10 K min(-1) under linear non-isothermal heating program using DSC technique in an inert atmosphere (N-2). Kinetic deconvolution procedure was applied to perform the overall kinetics of the formation of doped and undoped BaTiO3. The prepared samples and their decomposed products were identified and characterized by means of FT-IR, FT-Raman, XRD, SEM, TEM and SAED pattern. Activation energy needed for each resolved stage of the thermal decomposition was calculated by the KAS method in the temperature range 303-873 K. XRD pattern at different stages of thermal decomposition indicates that cubic BaTiO3 is transformed into tetragonal phase. The introduction of K+ -ion into the lattice of BTO enhances the thermal stability of BTO and shows a high energy reaction pathway revealing the complex mechanism. (C) 2017 Elsevier Ltd. All rights reserved.