Helium Properties and Data

Formula N/A CAS: N/A MW: 4.002602 g/mol

Critical Properties

Critical Temp (Tc) -267.95 °C | -450.32 °F

Critical Pres (Pc) 2.3 bar | 33.1 psia

Critical Vol (Vc) 0.000058 m³/mol | 0.002031 ft³/mol

Acentric Factor (I%) -0.3835

Boiling Point -268.93 °C | -452.07 °F

Melting Point -270.97 °C | -455.75 °F

Density (STP) 0.16 kg/m³ | 0.01 lb/ft³

Heat Capacity (STP) 5193.20 J/(kg·K) | 1.24 Btu/(lb·°R)

Rigorous Calculation

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