R. Meyer J. Köhler A. Homburg Explosives

Octogen
heat of explosion
(H2O gas): 1255 kcal/kg = 5249 kJ/kg calculated*)
(H2O liq.): 1338 kcal/kg = 5599 kJ/kg }
heat of detonation
(H2O liq.): 1480 kcal/kg = 6197 kJ/kg experimental**)
specific energy: 139 mt/kg = 1367 kJ/kg
density:
a-modification: 1.87 g/cm 3
b-modification: 1.96 g/cm 3
g-modification: 1.82 g/cm 3
d-modification: 1.78 g/cm 3
melting point: 275 °C = 527 °F
modification transition temperatures:
a W d: 193–201 °C = 379–394 °F
b W d: 167–183 °C = 333–361 °F
g W d: 167–182 °C = 333–359 °F
a W b: 116 °C = 241 °F
b W g: 154 °C = 309 °F
transition enthalpies:
a W d: 5.98 kcal/kg = 25.0 kJ/kg
b W d: 7.90 kcal/kg = 33.1 kJ/kg
g W d: 2.26 kcal/kg = 9.46 kJ/kg
b W g: 5.64 kcal/kg = 23.6 kJ/kg
a W g: 3.71 kcal/kg = 15.5 kJ/kg
a W b: 1.92 kcal/kg = 8.04 kJ/kg
specific heat, b-modification:
0.3 kcal/kg at 80 °C = 176 °F
lead block test: 480 cm 3 /10 g
detonation velocity, confined, b-mod.:
9100 m/s = 29800 ft/s at r = 1.9 g/cm 3
deflagration point: 287 °C = 549 °F
impact sensitivity: 0.75 kp m = 7.4 N m
friction sensitivity: at 12 kp = 120 N
pistil load: reaction
critical diameter of steel sleeve test: 8 mm
238
Octogen appears in four modifications, of which only the b-modification
displays a particularly high density and hence also a particularly
fast detonation rate.
It is practically insoluble in water. Its solubilities in other solvents
resemble those of W Hexogen.
* computed by the “ICT-Thermodynamic-Code”.
** value quoted from Brigitta M. Debratz, Properties of Chemical Explosives and
Explosive Simulants, University of California, Livermore.