KINETIC-ANALYSIS OF THE THERMAL-DECOMPOSITION OF GAMMA-IRRADIATED NICKEL OXALATE

The isothermal decomposition of un-irradiated and pre-gamma-irradiated dehydrated nickel oxalate has been studied in the temperature range 2 50-365-degrees-C. Irradiation appears to increase the number of potent ial nuclei-forming sites without modification of the mechanism of the thermal decomposition, which has been shown to proceed by a nucleation and growth mechanism both for un-irradiated and pre-gamma-irradiated samples of nickel oxalate. Application of Vand-Primak method for analy sis of the decomposition data and calculation of activation energies o f the decomposition process gives a good fit with that calculated usin g Arrhenious equation.