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Thermal decomposition features of ammonium nitrate and its boron mixture under high pressures
Author(s) -
Koroban V. A.,
Burtsev Yu. N.,
Alimov F. R.,
Haustov A. D.,
Dubovik V. A.,
Teselkin V. A.
Publication year - 1994
Publication title -
propellants, explosives, pyrotechnics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.56
H-Index - 65
eISSN - 1521-4087
pISSN - 0721-3115
DOI - 10.1002/prep.19940190608
Subject(s) - thermal decomposition , ammonium nitrate , decomposition , ammonium , boron , exothermic reaction , chemistry , differential thermal analysis , inorganic chemistry , nitrate , volume (thermodynamics) , atmospheric pressure , thermodynamics , analytical chemistry (journal) , environmental chemistry , organic chemistry , physics , oceanography , diffraction , optics , geology
The kinetics of ammonium nitrate thermal decomposition was studied by the differential thermal analysis in the pressure range from atmospheric to 1.0 GPa. The decomposition under pressure was shown to obey the zero‐order equation with a constant proportional to the initial HNO 3 concentration in the sample. The structural transitions in ammonium nitrate were found to affect its exothermic interaction with boron. The mechanism of this phenomenon was interpreted. The experimental data allowed to establish volume changes on melting ammonium nitrate, equal to 0.072 cm 3 /g.