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…
Hydrogen Compressibility at different temperatures and pressures
Hydrogen Density at different temperatures and pressures
Hydrogen mass and volume conversion factors at common temperatures and pressures. Data from NIST.
Hydrogen Thermal Conductivity at different temperatures and pressures