N. Agrawal et An. Garg, Effect of thiocyanate additive on the gamma ray induced decomposition of sodium and potassium nitrates, I J CHEM A, 40(7), 2001, pp. 700-703
Citations number
21
Categorie Soggetti
Chemistry
Journal title
INDIAN JOURNAL OF CHEMISTRY SECTION A-INORGANIC BIO-INORGANIC PHYSICAL THEORETICAL & ANALYTICAL CHEMISTRY
Gamma ray induced decomposition of binary mixtures of sodium and potassium
nitrates with their respective thiocyanate additives has been studied over
an absorbed dose up to 500 kGy. The decomposition of nitrate increases with
the increase in concentration of the additive in the binary mixture. The e
nhancement in G-values is up to 10(3)-times at > 90 mol % of the additive.
G(NO2-) values calculated on the basis of electron fraction of the nitrate
decrease with the increasing concentration of nitrate and absorbed dose. It
is proposed that F-H centres are produced on gamma irradiation and interac
t with the radical species of nitrate causing energy transfer and thus enha
ncing the formation of NO2-.