An evaluation of rate constants for radiation induced decomposition of alkali metal nitrates期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

An evaluation of rate constants for radiation induced decomposition of alkali metal nitrates

Authors:	S. P. Kulkarni A. N. Garg

Affiliation:	(1) Department of Chemistry, Nagpur University, 440 010 Nagpur, India

Abstract:	Radiation induced decomposition of solid alkali metal nitrates at room temperature has been studied up to an absorbed dose of 300 kGy. [NO₂^–] increases with absorbed dose. From the kinetic scheme $NO_3^ - xrightarrow{{{}^k1}}NO_2^ - + 0; O + NO_2^ - xrightarrow{{{}^k2}}NO_3^ - ;$ and $O + NO_3^ - xrightarrow{{{}^k3}}NO_2^ - + O_2$ , rate constants have been evaluated for the overall radiolytic decomposition of alkali metal nitrates. This kinetic scheme is applicable in the low dose range. At higher doses, however, the radiation induced reaction, NO₂^–+1/2 O₂NO₃^– may also contribute. The overall rate constants are 0.13×10^–6 (LiNO₃), 1.05×10^–6 (NaNO₃), 10.10×10^–6 (KNO₃), 9.50×10^–6 (RbNO₃) and 25.50×10^–6 (CsNO₃) kGy^–1.

Keywords:
本文献已被 SpringerLink 等数据库收录！