Barium titanate (BaTiO3 ) was produced from an barium-titanate-peroxo-hydroxide precursor material in NaCI-KCI and Na2SO4-K2SO4 salt mixtures or fluxes at temperatures up to 1080 degrees C via the molten-salt synthesis (MSS) method. Beside the different salt mixtures several other parameters were studied to determine the effect on the particle morphology. A relatively fast heating rate and a relatively high salt to precursor ratio resulted in a highly faceted morphology. The effect of the salt flux was clearly seen in the morphology of BaTiO3 obtained by MSS at 1080 degrees C. Cube-shaped particles were observed for the chloride-flux-grown BaTiO3 while hexagonal-shaped flat particles were observed for the sulfate-flux grown BaTiO3. BaTiO3 particles produced in the chloride-flux were either {101} or {001} faceted. The hexagonal surface of the sulfate-flux-grown BaTiO3 was {111} faceted. (C) 2016 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved.