Chemistry:3-Methylpentane

From HandWiki

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[1] and European[2] gasoline in small amounts, and by 2011 its share in US gas varied between 1.5 and 6%[3] It has close research and motor octane numbers of 74.5 and 74.3.[4]

References

  1. ↑ Doskey, Paul V.; Porter, Joseph A.; Scheff, Peter A. (November 1992). "Source Fingerprints for Volatile Non-Methane Hydrocarbons" (in en). Journal of the Air & Waste Management Association 42 (11): 1437–1445. doi:10.1080/10473289.1992.10467090. ISSN 1047-3289. Bibcode: 1992JAWMA..42.1437D. https://www.tandfonline.com/doi/full/10.1080/10473289.1992.10467090. 
  2. ↑ Östermark, Ulf; Petersson, Göran (1992-09-01). "Assessment of hydrocarbons in vapours of conventional and alkylate-based petrol". Chemosphere 25 (6): 763–768. doi:10.1016/0045-6535(92)90066-Z. ISSN 0045-6535. Bibcode: 1992Chmsp..25..763O. https://publications.lib.chalmers.se/records/fulltext/local_72590.pdf. 
  3. ↑ "Hydrocarbon Composition of Gasoline Vapor Emissions from Enclosed Fuel Tanks". United States Environmental Protection Agency. 2011. https://nepis.epa.gov/Exe/ZyPURL.cgi?Dockey=P100GPED.TXT. 
  4. ↑ Abdul Jameel, Abdul Gani; Van Oudenhoven, Vincent; Emwas, Abdul-Hamid; Sarathy, S. Mani (2018-05-17). "Predicting Octane Number Using Nuclear Magnetic Resonance Spectroscopy and Artificial Neural Networks". Energy & Fuels 32 (5): 6309–6329. doi:10.1021/acs.energyfuels.8b00556. ISSN 0887-0624. Bibcode: 2018EnFue..32.6309A. https://repository.kaust.edu.sa/items/8d16f709-8bb5-45ba-a668-cfd7a737d399. 




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