About iodine Iodine

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Iodine- 

                                                          

It occurs to an extent of 8×10 -5  % in earth crust as iodide and iodates. Main source of iodine are:

1- Certain deep sea weeds (Laminaria species). These plants contain about 0.5% iodide in their ashes in the form of iodide (Know as kelp) 

2- Crude chile salt petre (caliche) contains about 0.2% of NaIO³.(Sodium iodate) 

3- The ores of lead and dolomite contain traces of sodium potassium and magnesium iodide. 

4- Oil-well brines and sea water also contain very very small amount of iodides.

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