What is main sources of iodine how is iodine extracted from sea water
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The main source of Iodine is sea-food. We can get Iodine from seafood in the required amounts.
The most common iodine containing seafood is
- Codfish
- sea bass
- Haddock
- Perch
- Kelp
Kelp is also sea food. It is a common vegetable found in sea waters.
We use seaweed to extract iodine from sea water.
We can extract iodine from seaweed by the following technique.
- heat the seaweed in air
- heat it till it turns to ash
- ash contains iodine as iodide
- we dissolve this iodide using boiling water
- Then we filter this solution
- Use hydrogen to oxidize the iodide to iodine
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