* Sublimation: Iodine has a unique property where it transitions directly from a solid to a gas (sublimes) when heated. Sodium chloride, on the other hand, has a much higher melting point and will not sublimate at the same temperature.
How it works:
1. Heat the mixture: Gently heat the mixture in a suitable container. The iodine will sublimate, turning into a purple vapor.
2. Collect the iodine: The iodine vapor can be collected on a cool surface, where it will condense back into solid iodine crystals.
3. Remaining salt: The sodium chloride will remain behind in the original container.
Other methods to consider, but less ideal:
* Distillation: This method could be used, but iodine is somewhat soluble in water, so some iodine would remain in the water during distillation.
* Filtration: This method wouldn't work effectively because both sodium chloride and iodine are solids.
Sublimation is the most efficient and reliable way to separate these two substances.