Properties of Hydrogen at Normal Boiling Point

A list of some of the resources available in the Hydrogen Data Resource Center.

Hydrogen Properties at Normal Boiling Point
    English       Metric  
Property Units Liquid Vapor   Units Liquid Vapor
Temperature [a] °F -423.17 -423.17   °C -252.87 -252.87
Pressure [a] psi 14.696 14.696   pascals (Pa) 1.013E5 1.013E5
Density [a] lb/ft³ 4.4197 .08362   kg/m³ 70.797 1.3394
Specific volume [a] ft³/lb 0.2263 11.959   m³/kg 0.01413 0.7466
Compressibility factor [b] Z=PV/RT 0.01698 0.9051   Z=PV/RT 0.01698 0.9051
Heats of fusion and vaporization [b] Btu/lb 191.9 -   J/g 446.3 -
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