Chemistry experiment 47 – Sublimation of Iodine

At room temperature, elemental iodine is a black-bluish solid.

When heated, solid iodine sublimates and enters the gas phase.

Iodine got its name from the Greek word ‘ἰοειδής’, meaning ‘purple’. Indeed, iodine vapor has a beautiful purple color.

Regaining solid iodine from iodine vapor can be achieved by cooling down iodine vapor on a cold surface.

Beautiful iodine crystals are formed.

Hazards:
– Iodine is toxic

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