Air Products Home

Physical Properties for Sulfur Dioxide

Sulfur Dioxide
Formula SO2
Molecular Weight (lb/mol) 64.06
Critical Temp. (°F) 315.5
Critical Pressure (psia) 1142.0
Boiling Point (°F) 14.3
Melting Point (°F) -103.9
Psat @ 70°F (psia) 49.3
Liquid Density @ 70°F (lb/ft3) 85.98
Gas Density @ 70°F 1 atm (lb/ft3) 0.1682
Specific Volume @ 70°F 1 atm (ft3/lb) 5.94
Specific Gravity 2.285
Specific Heat @ 70°F (Btu/lbmol-°F) 9.58

Gas Physical Properties

Gas Fast Facts


This site uses cookies to store information on your computer. Some are essential to make our site work; others help us to better understand our users. By using the site, you consent to the placement of these cookies. Read our Legal Notice to learn more.