Potassium Iodate Powder ACS Grade


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Potassium iodate is a chemical compound composed of potassium, iodine, and oxygen. It is a white, odorless, and crystalline substance with diverse applications in various industries, especially medicine and food preservation. In this article, we will delve into the uses, benefits, side effects, and appropriate dosage of potassium iodate.

Introduction to Potassium Iodate:

Potassium iodate, with the chemical formula KIO3, is an inorganic salt belonging to the iodate group. It is commonly used as a source of iodine, a vital nutrient crucial in maintaining thyroid function and overall human health. The compound is prepared by reacting iodine with potassium hydroxide or potassium carbonate, forming potassium iodate and water.

Uses of Iodate:

Thyroid Health

One of the primary applications of potassium iodate is in thyroid health. Iodine is an essential component of thyroid hormones, such as thyroxine (T4) and triiodothyronine (T3), which regulate various bodily functions, including metabolism, growth, and development. Adequate iodine intake helps prevent thyroid disorders like goiter and hypothyroidism.

Food Preservation

Potassium iodate is utilized as a food preservative, particularly in salt. It helps prevent the degradation of iodine content in iodized salt, ensuring that it retains its potency over time. This is crucial in combating iodine deficiency in populations primarily consuming iodized salt.

Analytical Chemistry

In analytical chemistry, potassium iodate is a primary standard for iodometry. It can determine the concentration of various reducing agents through redox titration methods.

Radioactive Iodine Exposure

In radiation emergencies or nuclear accidents, potassium iodate is administered as a prophylactic measure to protect the thyroid gland from absorbing radioactive iodine. It helps prevent the harmful effects of radioactive iodine on the thyroid and reduces the risk of developing thyroid cancer.

3. Benefits of Potassium:

Iodine Supplementation

Potassium iodate provides a reliable and easily accessible source of iodine, supporting individuals who have insufficient iodine intake in their diets. Adequate iodine levels are essential for average growth and development, particularly during pregnancy and childhood.

Thyroid Disorders Prevention

The supplementation of potassium iodate in iodized salt has significantly reduced the incidence of iodine-related disorders, such as goiter and cretinism, in regions with historically low iodine intake. It has been a significant public health intervention in combating iodine deficiency.

Radiation Protection

During nuclear disasters or incidents involving radioactive iodine release, prompt administration of potassium iodate can safeguard the thyroid gland from absorbing harmful radioactive isotopes. This preventive measure reduces the long-term risk of thyroid cancer and other related complications.

Side Effects of Potassium Iodate:

Iodine Overdose

While iodine is essential for thyroid health, excessive intake can lead to iodine toxicity, a condition known as iodism. Symptoms of iodism may include a metallic taste in the mouth, sore throat, diarrhea, and skin rashes.

Allergic Reactions

Some individuals may experience allergic reactions to potassium iodate, characterized by itching, hives, swelling of the face and throat, and difficulty breathing. If such symptoms occur, medical attention should be sought immediately.

Thyroid Disorders

In rare cases, excessive iodine intake can lead to hyperthyroidism, a condition where the thyroid gland becomes overactive and produces excessive thyroid hormone. This can cause symptoms such as weight loss, palpitations, and nervousness.

Dosage and Administration:

Iodine Recommended Daily Allowance (RDA): 

The RDA of iodine varies based on age, gender, and life stage. The RDA ranges from 150 to 220 micrograms per day for most adults. Pregnant and lactating women have slightly higher requirements.

Iodized Salt Usage

In regions where iodine deficiency is prevalent, iodized salt is the primary vehicle for potassium iodate supplementation. Adding iodized salt to daily meals can help meet the recommended iodine intake.

Emergency Prophylaxis

When there is a risk of exposure to radioactive iodine, the recommended dosage of potassium iodate is typically a single oral dose of 130 mg for adults, 65 mg for children aged 3-12, and 32.5 mg for infants and toddlers.


125g, 2.5kg, 25g, 500g, 5g


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