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Contribution of nitric acid and alcohol to the radiolytic degradation of TODGA in Isopar-Mстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 12 января 2022 г.
- Авторы: Serenko Y.V., Ponomarev A.V., Belova E.V.Elena, Yudin N.V.
- Журнал: Journal of Radioanalytical and Nuclear Chemistry
- Том: 328
- Год издания: 2021
- Издательство: Akademiai Kiado
- Местоположение издательства: Hungary
- Первая страница: 1319
- Последняя страница: 1328
- DOI: 10.1007/s10967-021-07732-w
- Аннотация: Radiolytic transformations of TODGA (N,N,N',N'-tetra-n-octylamide of diglycolic acid) in Isopar-M significantly depend both on the addition of alcohol (n-nonanol or n-decanol) and on the saturation of the solution with 8 M HNO3. Fragmentation of TODGA molecules is the dominant radiolytic process. Compared to acid-free solution, radiolysis in the presence of HNO3 results in a much lower yield of N,N-dioctylacetamide formation, while 2-hydroxy-N,N-dioctylacetamide remains the main degradation product of TODGA. The acidification of the solution promotes a lower radiolytic degradation of TODGA, but expands the range of final radiolysis products, in particular, due to the participation of NO2 and NO radicals in radiation-induced reactions. Alcohol serves as a source of alkoxy radicals, which are highly reactive towards TODGA. In the presence of nitric acid, a significant portion of alkoxy radicals decay in reactions with NO2, NO, and acyl radicals and, thus, do not participate in the decomposition of TODGA.
- Добавил в систему: Юдин Николай Владимирович