Butane

Butane () is an alkane with the formula C4H10. Butane exists as two isomers, n-butane, and iso-butane, . Both isomers are highly flammable, colorless, easily liquefied gases that quickly vaporize at room temperature and pressure. Butanes are a trace component of natural gases, which contain higher concentrations of other hydrocarbons such as propane, ethane, and especially methane. Liquefied petroleum gas is a mixture of propane and some butanes.

thumb|An ignited lighter thumb|upright|Disposable lighter A lighter is a portable device which uses mechanical or electrical means to create a controlled flame, and can be used to ignite a variety of flammable items, such as cigarettes, butane gas, fireworks, candles, or campfires. A lighter typically consists of a metal or plastic container filled with a flammable liquid, a compressed flammable gas, or in rarer cases a flammable solid (e.g. rope in a trench lighter); a means of ignition to produce the flame; and some provision for extinguishing the flame or else controlling it to such a degre

Isobutane, also known as '''i-butane, 2-methylpropane or methylpropane''', is a chemical compound with molecular formula HC(CH3)3. An isomer of butane, it is a colorless, odorless gas. Isobutane is the simplest alkane with a tertiary carbon atom, and is used as a precursor molecule in the petrochemical industry, such as in the synthesis of isooctane.

metalworking technique using a gaseous fuel and oxygen

1,2-Butanediol is the organic compound with the formula HOCH(HO)CHCHCH. It is classified as a vic-diol (glycol). It is chiral, although typically it is encountered as the racemic mixture. It is a colorless liquid.

2,3-Butanediol is the organic compound with the formula (CH3CHOH)2. It is classified as a vic-diol (glycol). It exists as three stereoisomers, a chiral pair and the meso isomer. All are colorless liquids. Applications include precursors to various plastics and pesticides.

device producing controlled flame produced by combusting a fuel gas

1,4-Dichlorobutane is a chloroalkane with the molecular formula . It is one of several structural isomers of dichlorobutane. They are all colorless liquids of low flammabiltity and of interest for specialized synthetic uses.