Potassium Iodate (and Iodide)

Potassium Iodate (KIO3) is used commercially in the food industry, primarily as an additive for table salt to prevent a thyroid disease called Goiter. It is also used in analytical chemistry for the titration of sodium thiosulfate. The iodine in the iodate anion becomes liberated in the presence of both iodide (usually potassium iodide) and an acid such as hydrochloric or sulfuric. The endpoint is a clear aqueous solution, in the presence of starch.

KIO3 is a bit slow to dissolve in water. It also can become yellow over time, although when prepared and used immediately this is not usually a problem. Some preparations of KIO3 include iodide already mixed into the solution. Exaxol offers both types of iodates solutions of different normality for your convenience.  They are prepared in our ISO 17025 Accredited laboratory.