3-Methylpentane

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3-Methylpentane

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Template:Longitem	1730734
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MeSH	3-methylpentane
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RTECS number	Template:Unbulleted list
UN number	1208
Template:Longitem	Template:Chembox Elements/molecular formula
Molar mass	Template:Chem molar mass
Appearance	Colorless liquid
Odor	Odorless
Density	664 mg mL−1
Melting point	Template:Chembox CalcTemperatures
Boiling point	Template:Chembox CalcTemperatures
log P	3.608
Vapor pressure	18.0 kPa (at 17 °C)
Template:Longitem	8.8 mol Pa−1 kg−1
Template:Longitem	−75.52·10−6 cm3/mol
Template:Longitem	1.376
Template:Longitem	191.16 J K−1 mol−1
Template:Longitem	292.5 J K−1 mol−1
Template:Longitem	−203.0 – −201.0 kJ mol−1
Template:Longitem	−4.1608 – −4.1590 MJ mol−1
Flash point	Template:Chembox CalcTemperatures
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Explosive limits	1.2–7.7%
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3-Methylpentane is a branched alkane with the molecular formula C₆H₁₄. It is a structural isomer of hexane composed of a methyl group bonded to the third carbon atom in a pentane chain. It is of similar structure to the isomeric 2-methylpentane, which has the methyl group located on the second carbon of the pentane chain.

As of early 1990s, it was present in American and European gasoline in small amounts, and by 2011 its share in US gas varied between 1.5 and 6% It has close research and motor octane numbers of 74.5 and 74.3.

External links

• Material Safety Data Sheet for 3-Methylpentane

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