Abstract:
The contact of crown ether/ionic liquid extractants with nitric acid solutions results in macrocycle protonation, which complicates the radiolysis mechanism and increases the radiation destruction of the system. This trend is caused by the scavenging of secondary electrons by H3O+ ions at the early stages of the process. The revealed channel of the radiation-chemical transformations was not taken into account in the previous models of testing the radiation resistance of crown-containing compositions designed for 90Sr removal from radioactive wastes.
Keywords:
dicyclohexano-18-crown-6, hydroxonium ion, electron scavenging, macrocycle cleavage, radiation destruction.
Citation:
S. V. Nesterov, O. A. Zakurdaeva, “Chemical aspects of the radiation stability of macrocyclic extractants designed for 90Sr separation”, Mendeleev Commun., 31:1 (2021), 119–120
Linking options:
https://www.mathnet.ru/eng/mendc853
https://www.mathnet.ru/eng/mendc/v31/i1/p119
This publication is cited in the following 2 articles:
Yin Su, Jiangang He, Xingchen Liu, Su Jia, Kesheng Hu, Junqiang Yang, Tonghuan Liu, Xiaoqing Gao, Shan Xing, Keliang Shi, Xiaolin Hou, “Conveniently synthesis of porous crown-based resin with efficient 90Sr capture from highly acidic wastewater”, Separation and Purification Technology, 334 (2024), 126051
Oleg I. Artyushin, Anna V. Vologzhanina, Aleksandr N. Turanov, Vasilii K. Karandashev, Valery K. Brel, “Synthesis, coordination and extraction properties of 2,3-bis(diphenylphosphoryl)pyridine toward f-block elements”, Mendeleev Communications, 31:3 (2021), 306
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