What is Potassium Iodide (KI)?
Potassium iodide is an inorganic compound with the chemical formula KI. It appears as a white, odorless, and highly soluble crystalline powder. This compound is widely used in medical, nutritional, and industrial fields due to its reliable iodine-releasing properties.

Main Effects and Benefits of Potassium Iodide:

1. Supports Thyroid Function:
   The primary biological role of potassium iodide is to supply iodine, a critical micronutrient required for the production of thyroid hormones — triiodothyronine (T3) and thyroxine (T4). These hormones regulate metabolism, growth, and development. KI helps prevent and treat iodine deficiency-related disorders, such as goiter and hypothyroidism.

2. Iodine Deficiency Prevention:
   In regions where natural iodine levels in the soil and water are low, potassium iodide is added to table salt (iodized salt) to ensure adequate dietary intake. This simple intervention has dramatically reduced iodine deficiency across the globe.

3. Radiation Protection:
   One of the most well-known uses of potassium iodide is as a radioprotective agent. In the event of a nuclear accident, KI can block the absorption of radioactive iodine (I-131) by saturating the thyroid gland with stable iodine, thereby reducing the risk of thyroid cancer and other health effects. It is included in emergency kits and stockpiles in many countries.

4. Medical and Pharmaceutical Uses:
   KI is used in the treatment of certain skin conditions (e.g., sporotrichosis), as an expectorant in cough medicines, and as an antiseptic ingredient. In some formulations, it serves as a source of iodine in nutritional supplements.

5. Food Fortification and Additive:
   In the food industry, potassium iodide is added to salt and other food products to maintain nutritional value and prevent iodine loss. It is classified as a food additive with the E-number E917 in Europe.

6. Animal Nutrition:
   Potassium iodide is also used in animal feed formulations to ensure proper growth and reproductive health, particularly in cattle and poultry.

Key Advantages of Using Potassium Iodide:

• High bioavailability and rapid absorption

• Cost-effective and stable iodine source

• Long shelf life and ease of formulation

• Compatible with various pharmaceutical and food-grade applications

Conclusion:

Potassium iodide is a critical compound with wide-ranging effects and benefits, especially in iodine supplementation and thyroid protection. Whether it's used in iodized salt, emergency medicine, or animal nutrition, KI plays a vital role in promoting health and safety. Reliable suppliers of food-grade and pharmaceutical-grade potassium iodide ensure consistent quality for global industries.

TDS - Potassium iodide.pdf