Physical Properties Of ETHANE

Physical State at 15° C and 1 atm: Gas
Molecular Weight: 30.07
Boiling Point at 1 atm: –127.5°F = –88.6°C = 264.6°K
Freezing Point: –279.9°F = –183.3°C = 89.9°K
Critical Temperature: 90.1°F = 32.3°C = 305.5°K
Critical Pressure: 708.0 psia = 48.16 atm = 4.879 MN/m2
Specific Gravity: 0.546 at -88.6°C (liquid)
Liquid Surface Tension: 16 dynes/cm = 0.016 N/m at –88°C
Liquid Water Interfacial Tension: (est.) 45 dynes/cm = 0.045 N/m at –88°C
Vapor (Gas) Specific Gravity: 1.1
Ratio of Specific Heats of Vapor (Gas): 1.191
Latent Heat of Vaporization: 211 Btu/lb = 117 cal/g = 4.90 X 105 J/kg
Heat of Combustion: –20,293 Btu/lb = –11,274 cal/g = –472.02 X 105 J/kg
Heat of Decomposition: Not pertinent
Heat of Solution: Not pertinent
Heat of Polymerization: Not pertinent
Heat of Fusion: 22.73 cal/g
Limiting Value: Currently not available
Reid Vapor Pressure: Very high

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