Kinetic analysis of the thermal decomposition of gamma-irradiated nickel oxalate

✍ Scribed by R.M. Mahfouz; M.M.M. Abd-El-Wahab

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 390 KB
• Volume: 43
• Category: Article
• ISSN: 0969-806X
• DOI: 10.1016/0969-806x(94)90193-7

✦ Synopsis

The isothermal decomposition of un-irradiated and pre-y-irradiated dehydrated nickel oxalate has been studied in the temperature range 250-365°C. Irradiation appears to increase the number of potential nuclei-forming sites without modificationof the mechanism ofthe thermal decomposition, which has been shown to proceed by a nucleation and growth mechanism both for un-irradiated and pre-y-irradiated samples of nickel oxalate. Application of Vand-Primak method for analysis of the decomposition data and calculation of activation energies of the decomposition process gives a good fit with that calculated using Arrhenious equation.