EFFECT OF GAMMA-IRRADIATION ON THE THERMAL-DECOMPOSITION OF BARIUM OXALATE HEMIHYDRATE

Authors
BOSE S SAHU KK BHATTA D
Citation
S. Bose et al., EFFECT OF GAMMA-IRRADIATION ON THE THERMAL-DECOMPOSITION OF BARIUM OXALATE HEMIHYDRATE, Journal of radioanalytical and nuclear chemistry, 181(2), 1994, pp. 441-446
Citations number
31
Categorie Soggetti
Chemistry Analytical","Nuclear Sciences & Tecnology","Chemistry Inorganic & Nuclear
Journal title
Journal of radioanalytical and nuclear chemistry → ACNP
ISSN journal
02365731
Volume
181
Issue
2
Year of publication
1994
Pages
441 - 446
Database
ISI
SICI code
0236-5731(1994)181:2<441:EOGOTT>2.0.ZU;2-A
Abstract
The effect of gamma-irradiation (1.0-4.0 MGy) on the thermal decomposi tion of barium oxalate hemihydrate has been studied at 723K by's gas e volution method. Decomposition isotherms of unirradiated and irradiate d crystals are characterized by (i) rapid initial gas evolution, (ii) acceleratory and (iii) decay stages. Irradiation enhances the rate of decomposition without altering the mechanism oh the process, the effec t being higher at higher irradiation doses. The analysis of the data r eveal that the two-dimensional phase boundary reaction model gives the best fit to the results.