Butane C4H10
DESCRIPTION (Butane):
Butane is a colorless, flammable gas is also known
as n-Butane. It is shipped as a liquefied gas under it's own vapor pressure of
approximately 16.3 psig @ 70° F. Typically used in the manufacture of aviation fuels,
organic chemicals, as a calibration gas for temperature and pressure gauges and as a
heating fuel.
PHYSICAL CONSTANTS (Butane):
| Molecular Weight: |
58.124 |
| Vapor Pressure @ 70° F.: |
16.3 psig |
| Specific Volume @ 70° F., 1
atm.: |
6.4 cu.ft/lb |
| Boiling Point @ 1.0 atm. : |
31.1° |
| Freezing Point @ 1 atm. : |
-217.0° |
| Specific Gravity, Gas @ 60°
F., 1 atm. (Air = 1): |
2.076 |
| Density, Liquid @ 20° C.,
Saturation Pressure: |
0.5788 g/L |
| Critical Temperature: |
305.6° |
| Critical Pressure: |
550.8 psia |
| Critical Density: |
0.225 g/ml |
| Latent Heat of Vaporization @
b.p.: |
92.0 cal/g |
| Latent Heat of Fusion @ m.p.: |
19.17 cal/g |
| Flammable Limits in Air: |
1.9-8.5% by volume |
| Autoignition Temperature: |
761° |
| Gross Heat of Combustion @
60° F., 1 atm. |
3374.4 BTU/ft3 |
| Specific Heat, Liquid @ 60°
F., 1 atm. Cp: |
0.5636 BTU//(lb)(°) |
| Specific Heat, Gas @ 60° F.,
1 atm. Cp: |
0.3908 cal/(g)(° C) |
| Specific Heat, Gas @ 60° F.,
1 atm. Cv: |
0.3566 cal/(g)(° C) |
| Specific Heat Ratio, Gas @
60° F., 1 atm., Cp/Cv: |
1.096 |
| Viscosity, Gas @ 14.7° C., 1
atm. : |
0.0084 centipoise |
| Surface Tension @ -10° C., 1
atm. : |
16.02 dynes/cm |
CYLINDER CONNECTIONS (Butane):
Standard CGA V-1 Cylinder Connection: CGA 510
|
