CONCOA Precision Gas Controls

Ethane (C2H6)
DESCRIPTION (Ethane):


Ethane is a colorless, odorless, flammable gas. It is shipped in steel cylinders as a liquefied gas under its own vapor pressure of approximately 540 psig @ 70° F. Typical uses of Ethane are as a fuel for motors and as a refrigerant for extremely low temperature systems.

PHYSICAL CONSTANTS (Ethane):

Molecular Weight: 30.07
Vapor Pressure of pure liquid @ 70° F.: 543 psig
Specific Volume @ 60° F., 1 atm.: 12.8 cu.ft/lb
Boiling Point @ 1 atm. : -126.8° F
Triple Point -297.8° F
Specific Gravity, Gas @ 60° F., 1 atm. (Air = 1): 1.047
Density, Liquid @ 60° F, Saturation Pressure: 0.3768 g/ml
Critical Temperature: 90.1° F
Critical Pressure: 708 psia
Critical Density: 0.203 g/ml
Latent Heat of Vaporization @ b.p.: 116.55 cal/g
Latent Heat of Fusion @ t.p.: 22.7 cal/g
Flammable Limits in Air: 3.0-12.5% by volume
Autoignition Temperature: 950° F
Gross Heat of Combustion @ 60° F., 1 atm. 1783.7 BTU/ft3
Specific Heat, Gas @ 60° F., 1 atm. Cp: 0.4097 BTU/lb.° F
Specific Heat, Gas @ 60° F., 1 atm. Cv: 0.3436 BTU/lb.° F
Specific Heat Ratio, Gas @ 25° C., 1 atm., Cp/Cv: 1.192
Thermal Conductivity, Gas @ 0° C. : 0.0106 BTU/(hr)(ft2)( ° F/ft)
Viscosity, Gas @ 68° F., 1 atm. : 0.0091 centipoise
Entropy, Gas @ 25° C., 1 atm. : 48.004 cal/mol ° C
Solubility in Water @ 20° C., 1 atm. : 4.7ml/100ml water

CYLINDER CONNECTIONS (Ethane):

Standard CGA V-1 Cylinder Connection: CGA 350