Journal of Radioanalytical and Nuclear Chemistry
Volume/Issue:
Volume 227: Issue 1-2
Enhancement in gamma-ray induced decomposition of sodium and potassium nitrates by borate and cyanide additives
Authors:
N. Agrawal Nagpur University Department of Chemistry 44001 Nagpur India

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A. Garg Nagpur University Department of Chemistry 44001 Nagpur India

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Pages:
9–15
Online Publication Date:
12 Apr 2006
Publication Date:
17 Jan 1998
Article Category:
Research Article
DOI:
https://doi.org/10.1007/bf02386423
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Abstract  

Gamma — radiolytic decomposition of sodium and potassium nitrates and its admixtures with respective cyanide and borate additives has been studied over a wide absorbed dose range from 675 to 500 kGy. The decomposition of nitrate increases with the nature and concentration of the additive in the admixture. The enhancement is more significant at >80 mol% of the additive.G(NO 2− ) values, calculated on the basis of electron fraction of the nitrate salt, decrease with increasing concentration of the nitrate. ESR spectral studies suggest the formation of radical species such as BO4 and BO 32− etc, in borates whereas in case of cyanide additive FH centres are produced. The radical species and colour centres so produced may then transfer their energy to nitrate and cause enhancement in decomposition. A comparison with other oxyanion additives shows thatG(NO 2− ) values decrease in the order PO 43− >B4O 72− >SO 42− >CO 32− . Similarly, the nature of the cation also affects the decomposition.

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Cover Journal of Radioanalytical and Nuclear Chemistry
Journal of Radioanalytical and Nuclear Chemistry
Print ISSN:
0236-5731
Online ISSN:
1588-2780

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation		 1968
Volumes
per Year		 1
Issues
per Year		 12
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)

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