káliumjodid
Káliumjodid is the chemical compound with the formula KI. It is a salt formed from potassium (K+) and iodide (I-) ions. It appears as a white crystalline solid. Káliumjodid is soluble in water and also in ethanol. It is often used as a dietary supplement to prevent iodine deficiency. Iodine is essential for the proper functioning of the thyroid gland, which produces hormones that regulate metabolism. In some countries, potassium iodide is added to table salt to create iodized salt, a public health measure to combat iodine deficiency disorders.
Beyond its nutritional role, káliumjodid has several other applications. In photography, it was historically used as