|
Approximate Properties of LP-Gases
(Commercial Propane) |
| Chemical formula |
C3H8 |
| Molecular weight |
44.094 |
| Initial Boiling point at 14.7 psia, degrees F |
-44.0 |
Specific heat of liquid, Btu/lb. at 60
degrees F |
4.20 |
| Specific gravity, liquid at 60 degrees F |
0.504 |
|
Specific gravity, vapor at 60 degrees F |
1.5 |
Cubic ft. of vapor per gallon at 60
degrees F |
36.38 |
Cubic ft. of vapor per pound at 60
degrees F |
8.66 |
| Weight per gallon of liquid at 60 degrees F |
4.2 pounds |
| Ignition temperature |
920 – 1,120 degrees F |
| Maximum flame temperature in air |
3,595 degrees Fahrenheit |
| Flammability Limits in air (percent of vapor in air-gas mixture |
Lower: 2.15
Upper: 9.6 |
| Heat value per cubic foot of vapor |
2,516 Btu |
| Heat value per pound of liquid |
21,591 Btu |
| Heat value per gallon of liquid |
91,547 Btu |
| Latent heat of vaporization at boiling point |
Btu per pound: 184
Btu per gallon: 773 |
| Total heating values after vaporization |
Btu per cubic foot: 2,488
Btu per pound: 21,548
Btu Per gallon: 91,502 |
| Vapor pressure in psig |
70 degrees F: 127
100 degrees F: 196
105 degrees F: 210
130 degrees F: 287 |
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