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Electron-paramagnetic-resonance spectra of irradiated frozen aqueous solutions Communication 3. Aqueous solutions of sodium nitrate

  • Physical Chemistry
  • Published:
Bulletin of the Academy of Sciences of the USSR, Division of chemical science Aims and scope

Conclusions

  1. 1.

    The EPR spectra of frozen irradiated aqueous solutions of sodium nitrate were investigated in acid, neutral, and alkaline media.

  2. 2.

    At −196°, the EPR spectra of acid solutions are due to the NO2 and NO3 radicals, while in neutral medium the ion radical NO −23 (addition product of an electron to NO −3 ) also appears. In alkaline solution, the lines of the radical NO −23 predominate in the EPR spectrum, while the radical OH is transformed into the ion radical O−.

  3. 3.

    The yields of the radical products were measured at temperatures of −196 and −150° as a function of the NaNO3 and alkali concentrations. With increasing concentration of these substances, the yields of the radicals increase. The possible causes of this phenomenon were discussed.

  4. 4.

    The thermal stability of the radicals arising during irradiation was studied, and it was found that under definite conditions the OH radicals interact with NO −3 ions during the process of thawing.

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Authors and Affiliations

  1. Institute of Physical Chemistry, Academy of Sciences, USSR

    B. G. Ershov, A. K. Pikaev, P. Ya. Glazunov & Vikt I. Spitsyn

Authors
  1. B. G. Ershov
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  2. A. K. Pikaev
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  3. P. Ya. Glazunov
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  4. Vikt I. Spitsyn
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 11, pp. 1919–1927, November 1965

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Ershov, B.G., Pikaev, A.K., Glazunov, P.Y. et al. Electron-paramagnetic-resonance spectra of irradiated frozen aqueous solutions Communication 3. Aqueous solutions of sodium nitrate. Russ Chem Bull 14, 1891–1897 (1965). https://doi.org/10.1007/BF00845877

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  • DOI: https://doi.org/10.1007/BF00845877

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