THERMAL DECOMPOSITION OF A MIXTURE OF BARIUM AND TITANYL OXALATES.

Abstract

Thermal decomposition of titanyl oxalate, barium oxalate and a mixture of these two has been carried out, using various thermoanalytical methods, to verify the scheme of thermal decomposition of barium titanyl oxalate proposed by us earlier.' Dehydration of litanyl oxalate takes place in two steps, followed by the decomposition of the oxalate to anatase, without involving a carbonate formation. The decomposition of the mixture does not result in the formation of BaT1O 2 below 1000°C. This rules out the possibility of the intermediate formation of BaCO 2 and TiO2 during the decomposition of barium titanyl oxalate.