Effect of radiation dose on the thermal decomposition of sodium bromate

Influence of radiation dose in the range of 0.5–2.0 MGy of60Co γ-rays on the isothermal decomposition of sodium bromate at 633.0 K shows that irradiation increases the initial gas evolution {ie37-1}, shortens the induction period (I), enhances the rate of reaction in the accelerating and decay stages. The data fit well the Prout-Tompkins relationship, indicating that nucleation occurs in a chain branching manner during the process. The fraction decomposed, α, increases with increasing radiation dose.