Butane

Butane is quite similiar to propane, but with a slightly lower stoichiometric value of 3.23%. Pure butane is found in lighter refill canisters.

Butane has a lower vapor pressure than propane, and its boiling point is -0.5°C (31.1°F), so it won't work well in low temperatures. It is most easily used the same way as aerosol fuels.

Disposable canisters with mixtures of butane, propane and (sometimes) isobutane is sold for camping gear and blowtorches, this gas evaporates at lower temperatures and can be used in cold weather.