Because propane is virtually odorless and colorless in its natural state, a commercial odorant is added so propane can be detected if it leaks from its container.
View All Propane Facts
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| Retail propane companies, U. S.: |
8,000 |
| Retail propane outlets, U. S.: |
13,500 |
| Propane customers, U. S: |
14,300,000 Residential |
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1,040,000 Commercial |
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240,000 Industrial |
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310,000 Fork-lift |
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81,000 Fleet motor fuel |
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660,000 Agricultural |
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110,000 Standby |
| Propane-fueled vehicles (cars, trucks, buses), U. S: |
300,000 |
| U. S. households using propane as the main heating fuel: |
4.5 million |
| Transportation infrastructure: |
70,000 miles of pipelines |
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16,000 railroad tank cars |
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5,000 highway bulk transport trucks |
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36,5000 "bobtail" delivery trucks |
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7,000 cylinder delivery vehicles
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Characteristics of Propane
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| Chemical formula |
C3H8 |
| Specific gravity, liquid |
0.509 |
| Specific gravity, vapor |
1.52 |
| Weight per gallon |
4.24 pounds |
| Ignition temperature |
920 - 1,120 degrees Fahrenheit |
| Maximum flame temperature |
3,595 degrees Fahrenheit |
| 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 |
*Based on industry estimates, U. S. Census Bureau data, and U.S. Departments of Energy and Transportation statistics.
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