4-Amino-3-furazanecarboxamidoxime (AAOF) is an important precursor for synthesizing new furazano (furoxano) energetic compounds. Its thermal behaviour was studied under a non-isothermal condition by DSC methods. The results of this study show that there are one melting process and two exothermic decomposition processes. Its kinetic parameters of the intense exothermic decomposition process are obtained from analysis of the DSC curves. The apparent activation energy (Ea), pre-exponential factor (A) and the mechanism function (f(a)) were (146 +- 18) kJ mol 1, (1010.9+-1.8) s 1 and (1 a)2, respectively. The specific molar heat capacity (Cp,m) of AAOF was determined by a continuous Cp mode of micro-calorimeter. The self-accelerating decomposition temperature (TSADT), thermal ignition temperature (TTIT) and critical temperatures of thermal explosion (Tb) were obtained to evaluate its thermal safety.
Compounds
#
Formula
Name
1
C3H5N5O2
4-amino-3-furazancarboxamidoxime
Datasets
The table above is generated from the ThermoML associated json file (link above).
POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied;
the numbers refer to the table of compounds on the left.
Type
Compound-#
Property
Variable
Constraint
Phase
Method
#Points
POMD
1
Normal melting temperature, K ; Crystal
Crystal
Liquid
Air at 1 atmosphere
DTA
1
POMD
1
Molar enthalpy of transition or fusion, kJ/mol ; Crystal
Crystal
Liquid
Air at 1 atmosphere
DSC
1
POMD
1
Molar heat capacity at constant pressure, J/K/mol ; Crystal