What Happens To Iodine Particles When Heated?


3 Answers

Pippa Corbett Profile
Pippa Corbett answered
Iodine is a chemical element that is normally a metallic grey solid at room temperature.

However, whilst most solids melt into a liquid when they are heated, iodine transforms into a gas.

This process is known as sublimation.

Heating iodine particles?
If you gradually heat a solid piece of iodine, the element will begin transforming into a bright purple-pink gas that is known for its unpleasant odor.

This is markedly different from the reactions of most solids, which simply melt when exposed to heat and become a liquid.

Although it's possible to turn solid iodine into a liquid using controlled heat (and the correct amount of pressure), iodine usually 'skips' the liquid phase and goes straight from solid to gas.

The melting point of iodine is 113.7°C. Once heated to this temperature, solid iodine will begin producing a purple vapor.

To create liquid iodine, you'd need to keep the material at just below 113°C and then introduce the correct atmospheric pressure to keep the element from vaporizing.
Anonymous Profile
Anonymous answered
Iodine is a solid. If you heat a solid it will eventually turn into a liquid (eg ice).
Melting (if you can heat it strongly enough) turns Iodine into a gas (vapor).
Zhu Yugang Profile
Zhu Yugang answered
It will disappear, because it becomes gas when heated.

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