Propane (C3H8)

Propane (C3H8) – a colorless, flammable, liquefied gas. Pure propane is odorless so like natural gas it has Ethyl Mercaptan added which gives it its distinctive “smell”.

Common uses of Propane?

Propane is primarily used in heating applications and as fork truck fuel. Propane is also used in heavy steel fabrication for heating and cutting.

Common Cylinder Sizes

Bulk - call for details
Standard Cylinder Capacities, 100#s, 33# (fork truck size), and 20# (gas grill size), the pressure of a full cylinder at 70 degree Fahrenheit is 110psi.
Cylinder Pressure changes with temperature, click to find out details (pdf)
Many other Cylinder Sizes are available. Please call.

Fun Fact

Propane normally is a liquid in cylinders. Propane cylinder pressure will generally remain constant until the liquid is gone and then it drops quickly.

Fuel Gas Comparison (pdf)

Common Conversion Factors

1 gallon liquid (nbp) = 4.22 pounds
1 gallon liquid = 36.4 cf Gas (@60 F)
1 pound = 8.66 cf Gas (@60F)

Properties of Propane:

CGA is 510
Molecular Weight is 44.10
Flammability Limits is 2.1 - 9.5
% Specific Volume is 8.70 ft/lb (0.54 m/kg)
TLV is Simple Asphyxiant
DOT Name: Propane
UN No.: UN1975
DOT Class: 2.1
DOT Label: Flammable Gas
CAS Registry: 74-98-6

Propane Cylinder Specifications from Manchester Tank Co. (pdf)

MSDS

Small Cylinder Propane Safety Pamphlet (pdf)

General Propane Safety Information

Safe Handling of Compressed Gases (pdf)