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Article

  • Title

    Influence of nitrogen dioxide on the thermal decomposition of ammonium nitrate

  • Authors

    Kovalenko Igor L.

  • Subject

    CHEMISTRY. CHEMICAL ENGINEERING

  • Year 2015
    Issue 2(46)
    UDC 661.52+662.2-391
    DOI 10.15276/opu.2.46.2015.28
    Pages 160-164
  • Abstract

    In this paper results of experimental studies of ammonium nitrate thermal decomposition in an open system under normal conditions and in NO2 atmosphere are presented. It is shown that nitrogen dioxide is the initiator of ammonium nitrate self-accelerating exothermic cyclic decomposition process. The insertion of NO2 from outside under the conditions of nonisothermal experiment reduces the characteristic temperature of the beginning of self-accelerating decomposition by 50...70 °C. Using method of isothermal exposures it is proved that thermal decomposition of ammonium nitrate in nitrogen dioxide atmosphere at 210 °C is autocatalytic (zero-order reaction). It was suggested that there is possibility of increasing the sensitivity and detonation characteristics of energy condensed systems based on ammonium nitrate by the insertion of additives which provide an earlier appearance of NO2 in the system.

  • Keywords ammonium nitrate, thermolysis, nitrogen dioxide
  • Viewed: 1135 Dowloaded: 8
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  • References

    Література
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    References
    1.    Chaturvedi, S. and Dave, P.N. (2013). Review on thermal decomposition of ammonium nitrate. Journal of Energetic Materials, 31(1), 1-26.
    2.    Wang, X. (1994). Emulsion Explosives. Beijing: Metallurgical Industry Press.
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    4.    Cagnina, S., Rotureau, P. and Adamo, C. (2013). Study of incompatibility of ammonium nitrate and its mechanism of decomposition by theoretical approach. Chemical Engineering Transactions, 31, 823—828.
    5.    Rubtsov, Y.I., Kazakov, A.I., Nedelko, V.V., Shastin, Al.V., Larikova, T.S., Sorokina, T.V. and Korsounskii, B.L. (2008). Thermolysis of ammonium nitrate/potential donor of active chlorine compositions. Journal of Thermal Analysis and Calorimetry, 93(1), 301-309.
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    7.    Gorohovski, A.N. and Shapovalov, V.V. (2000). Experimental and theoretical modeling of thermal analysis. The Bulletin of DonNTU: The Chemical Series, 13, 50—56.

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