File:Butan_Lewis.svg · Wikimedia Commons · See Wikimedia Commons

EntityQ134192· pop 76· linked from 1,422 articles

butane

Sign in to save

Also known as n-C4H10, E943a, R-600, E-943a, E 943a, n-butane, normal-butane, butyl hydride

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.

AI overview

Butane is a highly flammable gas made of carbon and hydrogen atoms that easily turns into a liquid and then quickly evaporates at room temperature. It occurs naturally in small amounts in natural gas and is also mixed with propane to create liquefied petroleum gas, which is used as a fuel.

AI-generated from the Wikipedia summary — may contain errors.

Chemical data

Formula: C4H10
Molecular weight: 58.12 g/mol
IUPAC name: butane
SMILES: CCCC
InChIKey: IJDNQMDRQITEOD-UHFFFAOYSA-N
XLogP: 2.9
Polar surface area: 0 Å²
H-bond donors: 0
H-bond acceptors: 0
Formal charge: 0

via PubChem

Wikidata facts

Mass: 58.07825032
Autonomy: 372

Show 16 more facts

boiling point: -0.5
Commons category: Butane
canonical SMILES: CCCC
chemical formula: C₄H₁₀
NIOSH Pocket Guide ID: 0068
density: 0.6
speed of sound: 1034
upper flammable limit: 8.4
lower flammable limit: 1.6
melting point: -138.29
vapor pressure: 2.05
ionization energy: 10.53
time-weighted average exposure limit: 1900
flash point: -60
standard molar entropy: 310.2
UN class: 2.1

Sources (8)

via Wikidata · CC0

~8 min read

Article

8 sections

Contents

History
Isomers
Reactions
Uses
Health effects
See also
References
External links

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.

The name butane comes from the root but- (from butyric acid, named after the Greek word for butter) and the suffix -ane (for organic compounds).

Gallery (19)

Categories

Alkanes Butane Chembox having GHS data Chembox image size set Chemical articles having a data page ECHA InfoCard ID from Wikidata E-number additives E number from Wikidata Fuel gas GABAA receptor positive allosteric modulators Refrigerants