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Chemical compound From Wikipedia, the free encyclopedia
Methylcyclopentane is an organic compound with the chemical formula CH3C5H9. It is a colourless, flammable liquid with a faint odor. It is a component of the naphthene fraction of petroleum. It usually is obtained as a mixture with cyclohexane. It is mainly converted in naphthene reformers to benzene.[2] The C6 core of methylcyclopentane is not perfectly planar and can pucker to alleviate stress in its structure.[3]
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Names | |||
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Preferred IUPAC name
Methylcyclopentane | |||
Identifiers | |||
3D model (JSmol) |
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ChEBI | |||
ChEMBL | |||
ChemSpider | |||
ECHA InfoCard | 100.002.277 | ||
EC Number |
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PubChem CID |
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UNII | |||
UN number | 2298 | ||
CompTox Dashboard (EPA) |
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Properties | |||
C6H12 | |||
Molar mass | 84.162 g·mol−1 | ||
Appearance | Colorless liquid | ||
Density | 0.749 g/cm3[1] | ||
Melting point | −142.4 °C (−224.3 °F; 130.8 K)[1] | ||
Boiling point | 71.8 °C (161.2 °F; 344.9 K)[1] | ||
Insoluble | |||
-70.17·10−6 cm3/mol | |||
Hazards | |||
Occupational safety and health (OHS/OSH): | |||
Main hazards |
flammable | ||
Flash point | −4 °C (25 °F; 269 K) | ||
260 °C (500 °F; 533 K) | |||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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In 1895, Nikolai Kischner discovered that methylcyclopentane was the reaction product of hydrogenation of benzene using hydriodic acid. Prior to that, several chemists (such as Marcellin Berthelot in 1867,[4][5] and Adolf von Baeyer in 1870[6]) had tried and failed to synthesize cyclohexane using this method.
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