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/L |
| 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
|
