GAMMA-RAY INDUCED DECOMPOSITION OF BARIUM AND STRONTIUM NITRATES DISPERSED IN SULFATE AND CARBONATE MATRICES IN SOLID-STATE

Authors
JOSHI NG GARG AN
Citation
Ng. Joshi et An. Garg, GAMMA-RAY INDUCED DECOMPOSITION OF BARIUM AND STRONTIUM NITRATES DISPERSED IN SULFATE AND CARBONATE MATRICES IN SOLID-STATE, Indian journal of chemistry. Sect. A: Inorganic, physical, theoretical & analytical, 35(1), 1996, pp. 12-17
Citations number
32
Categorie Soggetti
Chemistry
Journal title
Indian journal of chemistry. Sect. A: Inorganic, physical, theoretical & analytical → ACNP
ISSN journal
03764710
Volume
35
Issue
1
Year of publication
1996
Pages
12 - 17
Database
ISI
SICI code
0376-4710(1996)35:1<12:GIDOBA>2.0.ZU;2-#
Abstract
The G(NO2-) values in gamma radiolytic decomposition of barium and str ontium nitrates are enhanced by their respective sulphate and carbonat e additives, their concentration and the absorbed dose. The enhancemen t is more significant at > 95 mol% of the additive after which the inc reasing trend is not so significant. Thermoluminescence and ESR spectr al studies suggest the formation of radical species such as SO4-, SO3- , O-2(-), CO3-, CO2-, etc. which may ineract with the radical species of nitrates (NO32-, NO2 etc) causing enhanced decomposition by energy transfer. A comparison of the carbonate and sulphate additives shows t he former to be more efficient medium of energy transfer.