Useful
Information about Liquefied Petroleum Gas |
| |
PROPANE |
BUTANE |
| Formula |
C3H8 |
C4H10 |
| Boiling Point, ° F |
-44 |
32 |
| Specific Gravity of Gas (Air =1.00) |
1.53 |
2.00 |
| Specific Gravity of Liquid (Water=1.00) |
0.51 |
0.58 |
| Lbs. Per Gallon of Liquid At 60° F |
4.24 |
4.81 |
| BTU per Gallon of Gas at 60° F |
91690 |
102032 |
| BTU per Lb. Of Gas |
21591 |
21221 |
| BTU per Cu. Ft. of gas at 60° F |
2516 |
3280 |
| Cu. Ft. of Vapor at 60° F/Gal. of Liquid at
60° F |
36.39 |
31.26 |
| Cu. Ft. of vapor at 60° F/Lb. of Liquid at
60° F |
8.547 |
6.506 |
| Latent Heat of Vaporization at Boiling Point
BTU/Gal. |
785.0 |
808.0 |
| Combustion Data: Cu. Ft. Air Required to Burn
1 Cu. Ft. Gas |
23.86 |
31.02 |
| Flash Point, ° F |
-156 |
NA |
| Ignition Temperature in Air, ° F |
920-1020 |
900-1000 |
| Maximum Flame Temperature in Air, ° F |
3595 |
3615 |
| Limits of flammability, Percentage of Gas in
Air Mixture at Lower Limit % : At Upper Limit % |
2.4 : 9.6 |
1.9 :8.6 |
| Octane Number (ISO-Octane = 100) |
Over 100 |
92 |