Question

What is main sources of iodine how is iodine extracted from sea water

Answer 1

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