Calcium iodate is any of two inorganic compounds with the formula Ca(IO3)2(H2O)x, where x = 0 or 1. Both are colourless salts that occur as the minerals lautarite and bruggenite, respectively. A third mineral form of calcium iodate is dietzeite, a salt containing chromate with the formula Ca2(IO3)2CrO4.[1] These minerals are the most common compounds containing iodate.

Production and uses

Lautarite, described as the most important mineral source of iodine, is mined in the Atacama Desert.[1] Processing of the ore entails reduction of its aqueous extracts with sodium bisulfite to give sodium iodide. This comproportionation reaction is a major source of the sodium iodide.[1]

Calcium iodate can be produced by the anodic oxidation of calcium iodide or by passing chlorine into a hot solution of lime in which iodine has been dissolved.

Calcium iodate is used as an iodine supplement in chicken feed.[1] Ethylenediamine dihydroiodide (EDDI) is a more typical source of nutritional iodine.

References

  1. ^ a b c d Lyday, Phyllis A.; Kaiho, Tatsuo (2015). "Iodine and Iodine Compounds". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. pp. 1–13. doi:10.1002/14356007.a14_381.pub2. ISBN 978-3-527-30673-2.
Allikas: https://en.wikipedia.org/wiki/Calcium_iodate
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