Under solid (grey), liquid (blue) and vapor states (white) along the equilibrium curves
Critical Point
Triple Point
Calculate a liquid or gas volume or a mass
At boiling point at 1.013 bar
in standard conditions (1,013 bar, 15°C)
Examples of uses of this molecule in Industry and Healthcare
N-Butane is used in calibration gas mixtures for petrochemical industry, environmental emission monitoring and trace impurity analyzers.
Laboratories & Research CentersN-Butane is used as a propellant for aerosol production.
Information to safely use this molecule
Europe (according to EN1839 for Limits and EN 14522 for autoignition temperature)
US (according to NFPA for Limits and ASTM E659 for autoignition temperature)
Faintly disagreeable
Recommendations : Air Liquide has gathered data on the compatibility of gases with materials to assist you in evaluating which materials to use for a gas system. Although the information has been compiled from what Air Liquide believes are reliable sources (International Standards: Compatibility of cylinder and valve materials with gas content; Part 1- Metallic materials: ISO11114-1 (March 2012), Part 2 - Non-metallic materials: ISO11114-2 (April 2013), it must be used with extreme caution and engineering judgement. No raw data such as these can cover all conditions of concentration, temperature, humidity, impurities and aeration. It is therefore recommended that this table is only used to identify possible materials for applications at high pressure and ambient temperature. Extensive investigation and testing under the specific conditions of use need to be carried out to validate a material selection for a given application. Contact the regional Air Liquide team for expertise service.
General information
n-Butane is one of the structural isomers of Butane, an organic compound with the formula C4H10 that is an alkane with four carbon atoms. The name butane comes from the roots "but-" from "butyric acid". Butane is mainly used as a fuel for domestic use (gas stove, water heater) and for extras (heating). n-Butane is prepared by pressurized distillation of liquefied petroleum gas or by purification of natural gas. It is solvable in aclohol and ether but not so much in water. Mostly inert, it needs a catalyst to participate in chimical reactions, except for combustion with dioxygen. Butanes are highly flammable, colorless, easily liquefied gases.