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.