Noun
Any one of five hydrocarbons, C6H14, of the paraffin series. They are colorless, volatile liquids, and are so called because the molecule has six carbon atoms.
Source: Webster's dictionaryIn the case of HPLC the mobile phase consists of a non-polar solvent(s) such as hexane in normal phase or polar solvents in reverse phase chromatography and the sample being separated. Source: Internet
Similarly, water and hexane (or vinegar and vegetable oil) are not miscible with each other and will quickly separate into two layers even after being shaken well. Source: Internet
Pentane, hexane, heptane, and octane are classed as dangerous for the environment and harmful. Source: Internet
'Rose Absolute' is solvent-extracted with hexane and produces a darker oil, dark yellow to orange in colour. Source: Internet