Radiolysis and radiolytic by-product of N, N-diethylhydroxylamine in HNO.sub.3 at lower dose

N, N-diethylhydroxylamine (DEHA) is a novel salt-free reducing reagent used in the separation of Pu and Np from U in the treatment of used nuclear fuel. This paper reports on the radiation damage and radiolytic by-product of 0.5 mol L.sup.-1 DEHA in 0.3 mol L.sup.-1 ~ 1.0 mol L.sup.-1 HNO.sub.3 at d...

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Bibliographic Details
Published in:Journal of radioanalytical and nuclear chemistry 2022-09, Vol.331 (9), p.3765
Main Authors: Wang, J. H, Chen, Y, Wan, Y, Wu, M. H, Zheng, W. F, He, H
Format: Article
Language:English
Subjects:
Acetic acid
Chemical tests and reagents
Nuclear energy
Nuclear industry
Organic acids
Radiation
Radiolysis
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Summary:N, N-diethylhydroxylamine (DEHA) is a novel salt-free reducing reagent used in the separation of Pu and Np from U in the treatment of used nuclear fuel. This paper reports on the radiation damage and radiolytic by-product of 0.5 mol L.sup.-1 DEHA in 0.3 mol L.sup.-1 ~ 1.0 mol L.sup.-1 HNO.sub.3 at dose up to 25 kGy. Results show that the radiolysis rate of DEHA is less than 10%. The main radiolytic products are hydrogen, acetaldehyde, acetic acid and nitrous acid, which increase with the dose. The concentration of acetaldehyde and acetic acid is much higher than that of nitrous acid.
ISSN:0236-5731
DOI:10.1007/s10967-022-08407-w