Skip to main content
Log in

The effect of aliphatic alcohol additives on the radiolytic degradation of TODGA in Isopar-M

  • Published:
Journal of Radioanalytical and Nuclear Chemistry Aims and scope Submit manuscript

Abstract

The radiolysis of solutions of TODGA (N,N,N′,N′-tetra-n-octylamide of diglycolic acid) in mixtures of Isopar-M (iso-paraffins C13–C14) with n-nonanol or n-decanol at 500 kGy leads to predominant decomposition of TODGA. The radiation-chemical yield of this process is 0.4–0.5 μmol J−1. The main products of the direct effect of ionizing radiation on TODGA are N,N-dioctylacetamide and 2-hydroxy-N,N-dioctylacetamide. The indirect effect of ionizing radiation is mainly due to reactions with alkoxy radicals and leads to the breaking of the C–N and C–C bonds in the α-position relative to the carbonyl group. An increase in the alcohol content in the solution results in the increase of the variety of radiolytic products, in the enhancement of gas evolution, and in the increase in the yield of TODGA decomposition. The replacement of n-decanol with n-nonanol does not significantly affect the radiolytic stability of the solutions.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4

Similar content being viewed by others

References

  1. Sasaki Y, Sugo Y, Suzuki S, Tachimori S (2001) The novel extractants, diglycolamides, for the extraction of lanthanides and actinides in HNO3–n-dodecane system. Solvent Extr Ion Exch. https://doi.org/10.1081/SEI-100001376

    Article  Google Scholar 

  2. Mowafy EA, Aly HF (2007) Synthesis of some N,N,N′,N′-Tetraalkyl-3-Oxa-Pentane-1,5-diamide and their applications in solvent extraction. Solvent Extr Ion Exch. https://doi.org/10.1080/07366290601169352

    Article  Google Scholar 

  3. Pourmand A, Dauphas N (2010) Distribution coefficients of 60 elements on TODGA resin: application to Ca, Lu, Hf, U and Th isotope geochemistry. Talanta. https://doi.org/10.1016/j.talanta.2010.01.008

    Article  PubMed  Google Scholar 

  4. Sasaki Y, Sugo Y, Kitatsuji Y, Kirishima A, Kimura T, Choppin GR (2007) Complexation and back extraction of various metals by water-soluble diglycolamide. Anal Sci. https://doi.org/10.2116/analsci.23.727

    Article  PubMed  Google Scholar 

  5. Skvortsov IV, Belova EV, Yudintsev SV (2020) Effect of irradiation on the oxidation kinetics of TODGA-based extraction mixtures at atmospheric pressure. Nucl Eng Technol. https://doi.org/10.1016/j.net.2020.02.024

    Article  Google Scholar 

  6. Hoshi H, Wei Y-Z, Kumagai M, Asakura T, Morita Y (2004) Group separation of trivalent minor actinides and lanthanides by TODGA extraction chromatography for radioactive waste management. J Alloy Compd. https://doi.org/10.1016/j.jallcom.2003.11.144

    Article  Google Scholar 

  7. Iqbal M, Huskens J, Verboom W, Sypula M, Modolo G (2010) Synthesis and Am/Eu extraction of novel TODGA derivatives. Supramol Chem. https://doi.org/10.1080/10610278.2010.506553

    Article  Google Scholar 

  8. Ansari SA, Pathak PN, Manchanda VK, Husain M, Prasad AK, Parmar VS (2005) N,N,N′,N′-tetraoctyl diglycolamide (TODGA): a promising extractant for actinide-partitioning from high-level waste (HLW). Solvent Extr Ion Exch. https://doi.org/10.1081/SEI-200066296

    Article  Google Scholar 

  9. Sugo Y, Izumi Y, Yoshida Y, Nishijima S, Sasaki Y, Kimura T, Sekine T, Kudo H (2007) Influence of diluent on radiolysis of amides in organic solution. Radiat Phys Chem. https://doi.org/10.1016/j.radphyschem.2006.05.008

    Article  Google Scholar 

  10. Zsabka P, Van Hecke K, Wilden A, Modolo G, Hupert M, Jespers V, Voorspoels S, Verwerft M, Binnemans K, Cardinaels T (2020) Gamma radiolysis of TODGA and CyMe4BTPhen in the ionic liquid tri-n-octylmethylammonium nitrate. Solvent Extr Ion Exch. https://doi.org/10.1080/07366299.2019.1710918

    Article  Google Scholar 

  11. Egorov GF (1986) Radiation chemistry of extraction systems. Energoatomizdat, Moscow

    Google Scholar 

  12. Metreveli AK, Ponomarev AV (2016) Radiation-initiated conversion of paraffins to engine fuel: direct and indirect initiation. Radiat Phys Chem. https://doi.org/10.1016/j.radphyschem.2016.02.002

    Article  Google Scholar 

  13. Ponomarev AV (2019) Acceleration of radical exchange and combination in 1-propanol under irradiation and boiling. Radiat Phys Chem. https://doi.org/10.1016/j.radphyschem.2019.01.011

    Article  Google Scholar 

  14. Sugo Y, Sasaki Y, Tachimori S (2002) Studies on hydrolysis and radiolysis of N,N,N,N-tetraoctyl-3-oxapentane-1,5-diamide. Radiochim Acta. https://doi.org/10.1524/ract.2002.90.3_2002.161

    Article  Google Scholar 

  15. Ponomarev AV, Vlasov SI, Kholodkova EM (2018) Radiation-chemical transformations of diethylene glycol dimethyl ether at room temperature and at boiling point. Radiat Phys Chem. https://doi.org/10.1016/j.radphyschem.2018.05.008

    Article  Google Scholar 

  16. Woods R, Pikaev A (1994) Applied radiation chemistry: radiation processing. Wiley, New York

    Google Scholar 

  17. Ponomarev AV, Vlasov SI, Kholodkova EM, Chulkov VN, Bludenko AV (2019) Influence of boiling on radiolysis of oxygen-containing liquids. Radiat Phys Chem. https://doi.org/10.1016/j.radphyschem.2019.108405

    Article  Google Scholar 

Download references

Acknowledgements

This work was financially supported by Russian Science Foundation (Project 16-19-00191).

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Elena V. Belova.

Ethics declarations

Conflict of interest

The authors declare that they have no conflict of interest.

Informed consent

This article does not contain any studies with human participants or animals performed by any of the authors.

Additional information

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Nikitina, Y.V., Yudin, N.V., Belova, E.V. et al. The effect of aliphatic alcohol additives on the radiolytic degradation of TODGA in Isopar-M. J Radioanal Nucl Chem 326, 1185–1192 (2020). https://doi.org/10.1007/s10967-020-07375-3

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10967-020-07375-3

Keywords

Navigation