Potassium iodate is an ionic compound with the chemical formula KIO3. Potassium iodate is a strong oxidizing agent, meaning in a chemical reaction, this ionic compound supports the transfer of oxygen atoms to other elements and compounds. This property as an oxidizing agent potentially makes potassium iodate a dangerous substance.
Facts
Potassium iodate is an oxidizer that you can create chemically by adding iodic acid to a potassium base. Further, this ionic compound is an odorless, white crystalline powder. In its pure state, do not inhale or swallow potassium iodate as this can irritate your gastrointestinal tract. Additionally, potassium iodate can cause eye, skin and respiratory tract irritation. Repeated exposure to potassium iodate can also lead to chronic iodine poisoning.
Reactivity
While not flammable itself, potassium iodate reacts violently with flammable materials and reducing agents such as organic compounds, aluminum, powdered metals, carbon, hydrogen peroxide and metal sulfides. Moreover, it can explode under the impact of mechanical shock. Always handle potassium iodate with care and avoid exposing the compound to certain substances.
Uses
Although potassium iodate is potentially dangerous and harmful to your health, the compound has several uses. The most common use of potassium iodate is in the manufacturing process used to make iodized table salt. Normally, manufacturers will spray potassium iodate on table salt to iodize the salt. Manufacturers typically use 60 mg of potassium iodate per 1 ton of table salt. Additionally, manufacturers use potassium iodate as an ingredient in medicines, disinfectants and deodorants.
Precautions
When working with potassium iodate, always wear chemical splash goggles, gloves and a lab coat to avoid unnecessary exposure. The primary concern regarding the use of this compound is not the associated health risk but the potential reactivity. Never heat potassium iodate to high temperatures, and store this compound separately from combustible materials and reducing agents. Store potassium iodate in a cool and dry place.
References
- "Comprehensive Handbook of Iodine: Nutritional, Biochemical, Pathological and Therapeutic Aspects"; Victor R. Preedy, Gerard N. Burrow MD; Ronald Ross Waston; 2009
- "Vogel's Quantitative Chemical Analysis"; J. Mendham and et al; 2000
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