Iodine is widely used as a disinfectant in medical settings, particularly for sterilizing skin before surgeries or injections. It is a key component in antiseptic solutions like povidone-iodine, which effectively kills bacteria, viruses, and fungi. In water treatment, iodine is employed to purify drinking water, especially in emergency situations where access to clean water is limited. It is also used in the production of certain dyes and pigments, particularly in the textile and printing industries. Additionally, iodine plays a crucial role in the synthesis of pharmaceuticals, including thyroid medications that help regulate metabolism. In analytical chemistry, iodine is utilized in titration methods to determine the concentration of various substances. It is also incorporated into animal feed to ensure proper thyroid function in livestock. Furthermore, iodine is essential in the manufacturing of LCD screens, where it is used in polarizing films to enhance display quality.