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  2. Isobutane - Wikipedia

    en.wikipedia.org/wiki/Isobutane

    Isobutane is the principal feedstock in alkylation units of refineries. Using isobutane, gasoline-grade "blendstocks" are generated with high branching for good combustion characteristics. Typical products created with isobutane are 2,4-dimethylpentane and especially 2,2,4-trimethylpentane. [7] Typical acid-catalyzed route to 2,4-dimethylpentane.

  3. Isobutane (data page) - Wikipedia

    en.wikipedia.org/wiki/Isobutane_(data_page)

    This page provides supplementary chemical data on isobutane. ... Structure and properties ... 10.3 dyn/cm at 20°C

  4. List of refrigerants - Wikipedia

    en.wikipedia.org/wiki/List_of_refrigerants

    According to ASHRAE standard 34, the R-number of a chemical refrigerant is assigned systematically according to its molecular structure and has between two and four digits. If there are carbon -carbon multiple bonds , there are four digits in all: the number of these bonds is the first digit and the number of carbon atoms minus one (C-1) is next.

  5. C4H10 - Wikipedia

    en.wikipedia.org/wiki/C4H10

    The molecular formula C 4 H 10 (molar mass: 58.12 g/mol, exact mass: 58.0783 u) may refer to: Butane , or n -butane Isobutane , also known as methylpropane or 2-methylpropane

  6. Butane - Wikipedia

    en.wikipedia.org/wiki/Butane

    Butane (/ ˈ b juː t eɪ n /) is an alkane with the formula C 4 H 10.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. ...

  7. Wiener index - Wikipedia

    en.wikipedia.org/wiki/Wiener_index

    Butane (C 4 H 10) has two different structural isomers: n-butane, with a linear structure of four carbon atoms, and isobutane, with a branched structure.The chemical graph for n-butane is a four-vertex path graph, and the chemical graph for isobutane is a tree with one central vertex connected to three leaves.

  8. Butyl group - Wikipedia

    en.wikipedia.org/wiki/Butyl_group

    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:

  9. Isobutylene - Wikipedia

    en.wikipedia.org/wiki/Isobutylene

    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.