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Chemical aspects of the radiation stability of macrocyclic extractants designed for 90Sr separation

Sergey Vladimirovich Nesterov 1, 2
Sergey Vladimirovich Nesterov
, 
10.1016/j.mencom.2021.01.037
Published 2020-12-30
Communication , Volume 31, Issue 1, 119-120
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Nesterov S. V., Zakurdaeva O. A. Chemical aspects of the radiation stability of macrocyclic extractants designed for 90Sr separation // Mendeleev Communications. 2020. Vol. 31. No. 1. pp. 119-120.
GOST all authors (up to 50) Copy
Nesterov S. V., Zakurdaeva O. A. Chemical aspects of the radiation stability of macrocyclic extractants designed for 90Sr separation // Mendeleev Communications. 2020. Vol. 31. No. 1. pp. 119-120.
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TY - JOUR
DO - 10.1016/j.mencom.2021.01.037
UR - https://mendcomm.colab.ws/publications/10.1016/j.mencom.2021.01.037
TI - Chemical aspects of the radiation stability of macrocyclic extractants designed for 90Sr separation
T2 - Mendeleev Communications
AU - Nesterov, Sergey Vladimirovich
AU - Zakurdaeva, Olga Anatol'evna
PY - 2020
DA - 2020/12/30
PB - Mendeleev Communications
SP - 119-120
IS - 1
VL - 31
ER -
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@article{2020_Nesterov,
author = {Sergey Vladimirovich Nesterov and Olga Anatol'evna Zakurdaeva},
title = {Chemical aspects of the radiation stability of macrocyclic extractants designed for 90Sr separation},
journal = {Mendeleev Communications},
year = {2020},
volume = {31},
publisher = {Mendeleev Communications},
month = {Dec},
url = {https://mendcomm.colab.ws/publications/10.1016/j.mencom.2021.01.037},
number = {1},
pages = {119--120},
doi = {10.1016/j.mencom.2021.01.037}
}
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Nesterov, Sergey Vladimirovich, and Olga Anatol'evna Zakurdaeva. “Chemical aspects of the radiation stability of macrocyclic extractants designed for 90Sr separation.” Mendeleev Communications, vol. 31, no. 1, Dec. 2020, pp. 119-120. https://mendcomm.colab.ws/publications/10.1016/j.mencom.2021.01.037.

Keywords

dicyclohexano-18-crown-6
electron scavenging
hydroxonium ion
macrocycle cleavage
radiation destruction

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.

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