Combustion of Energetic Materials Governed by Reactions in the Condensed Phase

Combustion behavior and physico-chemical properties of dihydroxylammonium 5,5′-bistetrazole-1,1′-diolate (TKX-50)

“…In [29,32], it was shown that the surface temperature on combustion of onium salts is 12.52 ⋅ 8.31 ⋅ 3 † = 312 kJ/mol [33]. The enthalpy obtained is somewhat lower than the above enthalpy of dissociation of liquid TKX-50 found by thermodynamic calculation (365 kJ/mol).…”

“…The surface temperature of TKX-50 in the pressure interval of 0.2-1.6 MPa grows from 585 K (312C) to 649 K (376C) ( Table 3), being slightly less than the surface temperature of RDX [29,31] (Fig.4). It was shown in [29,32] At pressures from 0.2 MPa to 0.6 MPa, the temperature gradient () above TKX-50 burning surface changes from 4·10 4 K/cm to 1.1·10 5 K/cm, however, heat feedback…”

“…The surface temperature of TKX-50 in the pressure interval of 0.2-1.6 MPa grows from 585 K (312°C) to 649 K (376°C) ( Table 3), being slightly less than the surface temperature of RDX [29,31] (Fig. 4).…”

“…It follows from a comparison of TKX-50, CL-20, and HMX burning rate-pressure dependences ( Fig.1) that TKX-50 burns somewhat faster than HMX [28], approaching to the burning rates of CL-20 [29,30].…”

“…It was shown in [29,32] At pressures from 0.2 MPa to 0.6 MPa, the temperature gradient () above TKX-50 burning surface changes from 4·10 4 K/cm to 1.1·10 5 K/cm, however, heat feedback…”