What type of mixture can be separated by sublimation ?

Sublimation can be used to separate a mixture of solids in which one solid sublimes and the others do not.

Sublimation is the process in which a heated solid goes directly into the gas phase without passing through the liquid phase.

You can use sublimation to separate a mixture of solids, one of which can undergo sublimation.

You heat the mixture and then cool the vapours separately to recover the sublimed solid .

Some substances that sublime are iodine, ammonium chloride, naphthalene, camphor, and sulfur.

You can separate ammonium chloride from sodium chloride by heating the mixture as shown below.

The ammonium chloride vapour deposits as solid crystals on the cool walls of the funnel. The salt stays in the china dish.