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Butane
C4H10
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| 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):
CAS # 106-97-8 |
| Molecular Weight: |
58.124 |
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Latent Heat of Fusion @
m.p.,
cal/g |
19.17 |
| Vapor Pressure @ 70º
F, psig |
16.3 |
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Flammable Limits in Air:
by volume% |
1.9-8.5 |
| Specific Volume @ 70º
F, 1 atm., cu.ft/lb |
6.4 |
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Autoignition
Temperature, ºF |
761 |
| Boiling Point @ 1.0 atm.,
ºF |
31.1 |
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Gross Heat of Combustion @
60º F., 1 atm., BTU/ft3 |
3374.4 |
| Freezing Point @ 1 atm.
, ºF |
-217.0 |
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Specific Heat, Liquid @ 60º
F., 1 atm. Cp, BTU//(lb)(ºF) |
0.5636 |
| Specific Gravity, Gas @ 60º
F., 1 atm. (Air = 1) |
2.076 |
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Specific Heat, Gas @ 60º F.,
1 atm. Cp, cal/(g)(ºC) |
0.3908 |
| Density, Liquid @ 20ºC.,
Saturation Pressure, g/ml |
0.5788 |
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Specific Heat, Gas @ 60º F.,
1 atm. Cv, cal/(g)(ºC) |
0.3566 |
| Critical
Temperature, ºF |
305.6 |
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Specific Heat Ratio, Gas @
60º F., 1 atm., Cp/Cv: |
1.096 |
| Critical
Pressure, psia |
550.8 |
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Viscosity, Gas @ 14.7ºC., 1
atm., centipoise |
0.0084 |
| Critical
Density, g/ml |
0.225 |
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Surface Tension @ -10ºC., 1
atm., dynes/cm |
16.02 |
| Latent Heat of Vaporization @
b.p., cal/g |
92.0 |
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| CYLINDER CONNECTIONS
(Butane): Standard CGA V-1 Cylinder Connection: CGA 510 (US and Canada) |
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Last edited on:
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July 06, 2006
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