Butane is a colorless, flammable gas that is part of the alkane family of hydrocarbons. It is commonly used as a fuel for lighters, portable stoves, and in some heating systems. Butane can be easily compressed into a liquid, making it convenient for storage and transport in canisters. In addition to its use as a fuel, butane is also an important ingredient in the production of various chemicals and plastics. It can be found in products like propane-butane mixtures used for camping and outdoor cooking. Overall, butane plays a significant role in everyday life and industrial applications.