Commercial jet fuel is a pale yellow liquid with a petroleum odor. It has an auto-ignition temperature of 410°F (210°C). Its explosive limits are from 0.6 to 4.

Commercial jet fuel is a pale yellow liquid with a petroleum odor. It has an auto-ignition temperature of 410°F (210°C). Its explosive limits are from 0.6 to 4.7 percent by volume in air. Hydrogen's auto-ignition temperature is 550°C and 4 percent by volume