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Physical Properties for Phosphine

Phosphine
Formula PH3
Molecular Weight (lb/mol) 34.00
Critical Temp. (°F) 124.9
Critical Pressure (psia) 947.9
Boiling Point (°F) -126.0
Melting Point (°F) -208.8
Psat @ 70°F (psia) 493.2
Liquid Density @ 70°F (lb/ft3) 35.50
Gas Density @ 70°F 1 atm (lb/ft3) 0.0885
Specific Volume @ 70°F 1 atm (ft3/lb) 11.30
Specific Gravity 1.203
Specific Heat @ 70°F (Btu/lbmol-°F) 8.93


Gas Physical Properties

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