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.
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.
