Potassium Iodate (KIO3) is a chemical compound. It is ionic, made up of K+ ions and IO3 ions in a 1:1 ratio.



  • Potassium iodate is sometimes used for iodination of table salt to prevent iodine deficiency.
  • Used as a maturing agent in baking.


  • Iodide can be oxidized to iodine by molecular oxygen under wet conditions, US companies add thiosulfates or other antioxidants to the potassium iodide. In other countries, potassium iodate is used as a source for dietary iodine. It is also an ingredient in some baby formula milk.


  • Possible side effects:
  • Rash, hives, or acne.
  • Fever.
  • Joint pain.
  • Swelling of the face, lips, tongue, throat, hands, or feet.
  • Wheezing.
  • Shortness of breath.
  • Trouble speaking, breathing, or swallowing.
  • Feeling anxious or irritable.


  • Not known.

Other names

  • Iodic acid, potassium salt


Source: Wikipedia, https://en.wikipedia.org/wiki/Potassium_iodate

Medicines.org, https://www.medicines.org.uk/emc/product/1350/pil

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