Flash point 38C (100F) Autoignition temperature 210C (410F) Freezing point47 C (53 F) 40C 40 F) Max adiabatic burn temperature 2,500 K (2,230 C) (4,040 F) Open Air Burn temperature: 1,030 �°C (1,890 �°F) Density at 15 �°C (59 �°F) 0.804 kg/l (6.71 lb/US gal) 0.820 kg/l (6.84 lb/US gal) Specific energy 42.80 MJ/kg 43.02 MJ/kg Energy density 34.7 MJ/l 35.3 MJ/l