Used in food fortification as a source of iodine to prevent iodine deficiency disorders, particularly in table salt. Added to salt in regions where dietary iodine is insufficient, helping to support proper thyroid function and prevent goiter. Employed in analytical chemistry as a primary standard in titrations, especially in redox reactions due to its stability and high purity. Commonly used in the determination of reducing agents like thiosulfate or arsenic(III) compounds. Utilized in some disinfectants and antiseptics for its oxidizing properties, though less common than other iodine compounds. Found in certain oxygen generation systems, where it decomposes upon heating to release oxygen, useful in emergency oxygen supplies or chemical oxygen generators. Also applied in the preparation of other iodine-containing compounds and in some industrial processes requiring a controlled source of iodine or oxidizing agent.