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Hermetic Thermal Behavior of 3,4‐Diaminofurazan (DAF)
Author(s) -
Li Yanfeng,
Wang Xiaofeng,
Xu Kangzhen,
Wang Bozhou,
Song Jirong,
Zhao Fengqi
Publication year - 2016
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.201500330
Subject(s) - exothermic reaction , thermal decomposition , enthalpy , adiabatic process , heat capacity , thermodynamics , decomposition , thermal stability , materials science , exothermic process , thermal , chemistry , analytical chemistry (journal) , chromatography , organic chemistry , physics , adsorption
Hermetic thermal behavior of 3,4‐diaminofurazan (DAF) was studied by DSC method with special high‐pressure hermetic crucibles. The complete exothermic decomposition process of DAF can be provided. The extrapolated onset temperature, peak temperature, and enthalpy of decomposition at a heating rate of 10 K min −1 are 238.7 °C, 253.0 °C, and −1986 J g −1 , respectively. Self‐accelerating decomposition temperature and critical temperature of thermal explosion of DAF are 232.3 and 253.1 °C, respectively. Specific heat capacity of DAF was determined with a micro DSC method and the molar heat capacity is 140.78 J mol −1 K −1 at 298.15 K. Adiabatic time‐to‐explosion of DAF is about 90 s. The thermal stability of DAF is good.