Basic Hydrogen Properties Download the information in Excel format:  Properties Value Units Auto ignition temperature 500 °C   932 °F Boiling point (1 atm) -252.9 °C   -423.2 °F Density NTP  0.08375…
Property Units Hydrogen Methane Propane Methanol Ethanol Gasoline Chemical Formula   H2 CH4 C3H8 CH3OH C2H5OH CxHy (x = 4 - 12) Molecular Weight [a, b]   2.02 16.04 44.1 32.04 46.…
Contains a comparison of the amount of fuel necessary to provide the same energy unit based on the lower heating values.
Hydrogen Enthalpy at different temperatures and pressures
Hydrogen Thermal Conductivity at different temperatures and pressures