What processes are called sublimation (sublimation) and condensation (desublimation)? What substance can be purified

What processes are called sublimation (sublimation) and condensation (desublimation)? What substance can be purified by sublimation and subsequent condensation?

The transition of a substance from a solid state (without melting) to a gaseous state is called sublimation (sublimation). And the transition of a substance from a gaseous state to a liquid or solid is called condensation (desublimation). Iodine can be purified by sublimation and subsequent condensation.

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