Crude iodine is what kind of substance can be purified into pure iodine

We should be familiar with iodine, and it is also a substance that we cannot lack in our lives.
Once iodine is deficient, it may also affect our health, such as large neck disease or other diseases, etc.
, but we are buying iodine.
At that time, the price of buying traditional pure iodine or refined iodine is relatively high, so many people will buy crude iodine and then purify it again.
What kind of substance is the specific crude iodine? How can crude iodine be purified into pure iodine? Let me briefly introduce it below
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When the crude iodine is purified, the related temperature or time control is very important.
The ICI and Ibr contained in it can be sublimated after being heated, and a part of refined iodine can be obtained after sublimation
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In other words, crude iodine is a change from solid to gas

Now we have a better understanding of what kind of crude iodine is or how to purify it.