Kinetics of dehydration and thermal decomposition of Sr(NO3)2 ·4H2O and its deuterated analogue with a view to obtaining SrO

Article abstract of DOI:10.1007/BF01913922

The kinetics and mechanism of the thermal-dehydration of Sr(NO₃). 4H₂O and its deuterated analogue were studied by means of the DTA, TG and DSC. The temperatures, enthalpies and weight losses of phase transitions were measured. The dehydration occurs in a stepwise manner, and the composition of the intermediate depends on the rate of thermal decomposition. The kinetic parameters (E* and Z) for the two steps of dehydration at a heating rate of 5 deg min^-1 were calculated. A correlation was found between the disperity of the end-product of the thermal decomposition (SrO) and the conditions of its preparation.