Propylene is a multi-purpose industrial fuel gas offering economy, safety and performance. Western International’s HPG brand of propylene is the leading alternate fuel gas used by the metal working industry for cutting, heating, brazing and metalizing applications.
Supply Options
Bulk Propylene
Polymer-grade propylene is supplied through a combination of direct pickup from the manufacturing location and storage depots located in strategic areas throughout the United States. The product is transported to depots from the manufacturing location via jumbo railcars that contain approximately 30,000 gallons of product. Propylene gas is stored at the depots in large bulk holding facilities with capacities exceeding 60,000 gallons, then loaded into transport carriers that deliver the product to the customer’s bulk storage facility.
HPG Propylene Cylinders
Propylene Shipping Data
Chemical Symbol C3H6 Synonyms CAS Registry Number DOT Proper Shipping Name Propylene DOT Classification 2.1 (Flammable gas) DOT Label FLAMMABLE GAS | TC Shipping Name Propylene TC Classification 2.1 TC Label FLAMMABLE GAS UN Number UN 1077 |
Propylene Physical Properties
US Units | SI Units | |
Chemical formula | C3H6 | C3H6 |
Density of the gas at 70°F (21.1°C) | 0.110 lb/ft3 | 1.77 kg/m3 |
Molecular weight | 42.081 | 42.081 |
Specific gravity of the gas at 70°F (21.1°C) | 1.45 | 1.45 |
Density of the liquid at 70°F (21.1°C) | 32.07 lb/ft3 | 513.71 kg/m3 |
Specific gravity of the liquid at 70°F (21.1°C) | 0.514 | 0.514 |
Boiling range | -53.90°F | -47.72°C |
Vapor pressure at 70°F (21.1°C) | 132.81 psig | 915.69 Kpa |
Critical temperature | 197.2°F | 91.77°C |
Critical pressure | 670 psia | 4619.5 Pa |
Latent heat of vaporization at 77°F (25°C) | 118.18 Btu/lb | 437.71 kJ/kg |
Cp of gas at 60°F (15.6°c) and 1 atm | 0.355 Btu/lb/F | 1.49 kJ/kg/C |
Cv of gas at 60°F (15.6°c) and 1 atm | 0.308 Btu/lb/F | 1.288 kJ/kg/C |
Gross heat of combustion | 21048 Btu/lb | 49112 kJ/kg |
Flame temperature in oxygen | 5295°F | 2924°C |
Flammable limit in air | 2 to 11.1% | 2 to 11.1% |