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Isobutane, also known as i-butane, 2-methylpropane or methylpropane, is a chemical compound with molecular formula HC(CH 3) 3. It is an isomer of butane . Isobutane is a colorless, odorless gas.
2 Structure and properties. 3 Thermodynamic properties. 4 Vapor pressure of liquid. 5 Spectral data. 6 References. Toggle the table of contents. ... Vapor pressure of ...
Butane exists as two isomers, n-butane with connectivity CH 3 CH 2 CH 2 CH 3 and iso-butane with the formula (CH 3) 3 CH. Both isomers are highly flammable, colorless, easily liquefied gases that quickly vaporize at room temperature and pressure. Butanes are a trace components of natural gases (NG gases).
In organic chemistry, butyl is a four-carbon alkyl radical or substituent group with general chemical formula −C 4 H 9, derived from either of the two isomers (n-butane and isobutane) of butane. The isomer n -butane can connect in two ways, giving rise to two "-butyl" groups:
Isobutane, also known as methylpropane or 2-methylpropane Index of chemical compounds with the same molecular formula This set index page lists chemical structure articles associated with the same molecular formula .
Isobutylene is used in the production of a variety of products. It is alkylated with butane to produce isooctane or dimerized to diisobutylene (DIB) and then hydrogenated to make isooctane, a fuel additive.
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Structure and properties Index of refraction, n D: 1.3326 at 20 °C [1] Dielectric constant, ε r: 1.7697 ε 0 at 23 °C [2] Symmetry group: C 2h: Magnetic susceptibility? Surface tension: 12.46 dyn/cm at 20 °C P ≈ 225 kPa