Name the 5 different structural isomers of hexane.

Hexane is an alkane consisting of six carbon atoms with a chemical formula C6H14. Hexane is a nonpolar molecule with a weak intermolecular interactions occur between the molecules of pure liquid hydrocarbons.

Isomers of Hexane

Hexane has five isomers:

  • Hexane, CH3CH2CH2CH2CH2CH3, a straight chain of six carbon atoms.
  • 2-Methylpentane (Isohexane), CH3CH(CH3)CH2CH2CH3, a five-carbon chain with one methyl branch on the second.
  • 3-Methylpentane, CH3CH2CH(CH3)CH2CH3, a five-carbon chain with one methyl branch on the third.
  • 2,3-Dimethylbutane, CH3CH(CH3)CH(CH3)CH3, a four-carbon chain with one methyl branch on the second and third.
  • 2,2-Dimethylbutane (neohexane), CH3C(CH3)2CH2CH3, a four-carbon chain with two methyl branches on the second.

Uses of Hexane

  • One of the most commonly used solvents in synthetic reactions using lipases.
  • Used in the biodiesel production.
  • Hexane in commercial grades used as solvents for varnishes, inks and adhesives.
  • Used as a min solvent for vegetable oilseed and other non-petroleum oil extraction since the 1940s.
  • Hexane azeotropes have been used for secondary extraction of residual lipids from hexane-extracted meals in order to improve flavor and odour.

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