Is there a simple test tube reaction (or reactions) that can be used to differentiate between hexane and cyclohexane? (So no mass spectrometry, boiling point analysis etc., or identification by smell). What about differentiating between hexane and benzene?

 

By 'simple test tube reaction' I mean, for example, aldehydes produce a silver mirror with Tollens reagent whereas ketones don't react (standard conditions).

Edited June 8, 201411 yr by Medicore123

Put it in a test tube.

Cool the tube in ice water.

Cyclohexane will freeze.

Hexane won't.

 

Benzene will also freeze under those conditions.

Useful tips, thanks John, +1

Edited June 8, 201411 yr by studiot