Propane is a three-carbon alkane with the molecular formula C₃H₈. It is a gas at standard temperature and pressure, but compressible to a transportable liquid.

What temperature does propane turn to liquid?

Propane requires just 1,220 kilopascals (177 psi) of pressure to keep it liquid at 37.8 °C (100 °F).

Does propane turn to liquid?

Propane exists in its liquid form at or below its boiling point (-44°F) as well as when it stored under pressure. But as soon as the temperature rises to -44°F, the propane begins to boil and thus give off vapor. ... If the temperature outside is colder than -44°F, propane exists as a liquid.