Buy Propane Gas Cylinders and Tanks What is propane? Propane is a flammable, liquefied, colorless hydrocarbon gas that is a small component found in most natural gases in North America. Although some individual gas wells have recorded even higher concentrations, the average concentration of propane ranges from about 0.1% to as high as 4%. Uses for propane High purities of propane, including Research Grades (3.0 and 4.0), Instrument (2.5), and Chemically Pure (C.P.), are frequently used as calibration gases to accurately measure heat and in organic chemical manufacturing research and development, including the synthesis of propylene and propylene oxide. Another use for high purity propane is in the industrial hygiene industry where it is used as a component in extremely precise mixtures to calibrate total hydrocarbon analyzers. Additionally, propane is also realizing increased popularity as a natural refrigerant, due to its Global Warming Potential (GWP) that is notably lower than many of the synthetic hydrofluorocarbons that are currently used. Where to buy propane For more information on how you or your company can purchase high-purity propane in your area, contact your local PurityPlus® distributor using our Find Your Nearest Provider tool. We can also be reached via our website or at 877-81P-PLUS (877-817-7587) to help answer questions or provide more information. PurityPlus also provides a Propane SDS available via this link or in the sidebar.