Iodine is widely used as a disinfectant and antiseptic in medical settings. It is commonly applied to clean wounds, surgical sites, and skin before procedures to prevent infections. In the form of povidone-iodine, it is a key ingredient in many topical solutions and scrubs. In water treatment, iodine serves as a disinfectant to purify drinking water, especially in emergency situations or outdoor activities where clean water is unavailable. It effectively kills bacteria, viruses, and protozoa, making water safe for consumption. Iodine is also essential in the production of thyroid hormones, which regulate metabolism and growth. It is added to table salt (iodized salt) to prevent iodine deficiency disorders, such as goiter and hypothyroidism, in populations with limited dietary iodine intake. Additionally, iodine is used in various industrial applications, including the manufacture of dyes, pigments, and pharmaceuticals. It also plays a role in analytical chemistry as a reagent in titrations to determine the concentration of certain substances.