Skip to main content
SpringerLink
Log in

Thermal properties of 2,2′-bipyridine-6,6′-dicarboxylic acid bis(N-ethyl-4-hexylanilide), an extractant for radioactive waste components

  • Published:
Radiochemistry Aims and scope

Abstract

Thermal properties of 2,2′-bipyridine-6,6′-dicarboxylic acid bis(N-ethyl-4-hexylanilide) (DYP-7) were studied by DSC-TG with the aim of evaluating its fire and explosion hazard. Heating at a rate of 1 K min–1 is accompanied by exothermic effects with the onset temperatures of 202, 312, and 432°С for the initial extractant and 62, 297, and 412°С for the extractant saturated with nitric acid. The presence of extracted nitric acid decreases the self-ignition point of DYP-7 by at least 20°С. The onset temperatures of the exothermic effects tend to increase with increasing heating rate. The extractant thermolysis products characteristic of the exothermic effect with the onset temperature of 202°C were identified by GC-MS. These are the deethylation product, 2,2′-bipyridine-6,6′-dicarboxylic acid N,N′-bis(4-hexylphenyl)amide, and product of further dearylation/reduction, 6′-formyl-N-(4-hexylphenyl)-2,2′-bipyridine-6-carboxamide.

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

Access this article

Log in via an institution

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

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. Paulenova, A., Alyapyshev, M.Y., Babain, V.A., et al., Sep. Sci. Technol., 2008, vol. 43, pp. 2606–2618.

    Article  CAS  Google Scholar 

  2. Paulenova, A., Alyapyshev, M.Y., Babain, V.A., et al., Solvent Extr. Ion Exch., 2013, vol. 31, pp. 184–197.

    Article  CAS  Google Scholar 

  3. Alyapyshev, M., Babain, V., Borisova, N., et al., Polyhedron, 2010, vol. 29, pp. 1998–2005.

    Article  CAS  Google Scholar 

  4. Alyapyshev, M.Yu., Babain, V.A., Tkachenko, L.I., et al., Solvent Extr. Ion Exch., 2014, vol. 32, pp. 138–152.

    Article  CAS  Google Scholar 

  5. Kirsanov, D.O., Borisova, N.E., Reshetova, M.D., et al., Russ. Chem. Bull., 2012, vol. 61, no. 4, pp. 881–890.

    Article  CAS  Google Scholar 

  6. ASTM Standard E537-12.

  7. Bellamy, L.J., The Infra-Red Spectra of Complex Molecules, New York: Wiley, 1957. Translated under the title Infrakrasnye spektry slozhnykh molekul, Moscow: Izd. Inostrannoi Literatury, 1963, pp. 23–49, 96–122, 397–409, 491.

    Google Scholar 

  8. Tarasevich, B.N., IK spektry osnovnykh klassov organicheskikh soedinenii: Spravochnye materialy (IR Spectra of Main Classes of Organic Compounds: Handbook), Moscow: Mosk. Gos. Univ., 2012.

    Google Scholar 

  9. Brown, D.W., Floyd, A.J., and Sainsbury, M., Organic Spectroscopy, Chichester: Wiley, 1988. Translated under the title Spektroskopiya organicheskikh veshchestv, Moscow: Mir, 1992, pp. 46–79.

    Google Scholar 

  10. Nazin, E.R. and Zachinyaev, G.M., Pozharovzryvobezopasnost’ tekhnologicheskikh protsessov radiokhimicheskikh proizvodstv (Fire and Explosion Safety of Processes at Radiochemical Enterprises), Moscow: Nauchno-Tekh. Tsentr Yadernoi i Radiatsionnoi Bezopasnosti, 2009, pp. 48–57.

    Google Scholar 

  11. Wendlandt, W.Wm., Thermal Methods of Analysis, New York: Interscience, 1964. Translated under the title Termicheskie metody analiza, Moscow: Mir, 1978, pp. 159–163.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, korp. 4, Moscow, 119071, Russia

    I. V. Skvortsov, V. V. Kalistratova, E. V. Belova, A. V. Rodin & B. F. Myasoedov

  2. Scientific and Technical Center for Nuclear and Radiation Safety, ul. Malaya Krasnosel’skaya 2/8, korp. 5, Moscow, 107140, Russia

    I. V. Skvortsov, E. V. Belova, A. V. Rodin & I. P. Sokolov

Authors
  1. I. V. Skvortsov
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. V. V. Kalistratova
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. E. V. Belova
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. A. V. Rodin
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. I. P. Sokolov
    View author publications

    You can also search for this author in PubMed Google Scholar

  6. B. F. Myasoedov
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to E. V. Belova.

Additional information

Original Russian Text © I.V. Skvortsov, V.V. Kalistratova, E.V. Belova, A.V. Rodin, I.P. Sokolov, B.F. Myasoedov, 2017, published in Radiokhimiya, 2017, Vol. 59, No. 6, pp. 539–543.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Skvortsov, I.V., Kalistratova, V.V., Belova, E.V. et al. Thermal properties of 2,2′-bipyridine-6,6′-dicarboxylic acid bis(N-ethyl-4-hexylanilide), an extractant for radioactive waste components. Radiochemistry 59, 612–617 (2017). https://doi.org/10.1134/S1066362217060091

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1134/S1066362217060091

Keywords

Search

Navigation