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
