Source: Naturally occurring in rocks, minerals, and ocean water. May be added to table salt for dietary intake. Used in water disinfection, medicines, soaps, and bandages.

Summary: Iodine is element 53 on the periodic table of elements. It is a member of the halogens and exists as a diatomic molecule. It has a density of 4.93 g/mL at 20 C. It occurs naturally in rocks and minerals, and in ocean water. Iodine is an essential element that humans need in their diet and may be added to table salt for this purpose. It is used in the product of thyroid hormones, and it is suggested that iodine is important for healthy pregnancies. Iodine has been used as a disinfectant for water treatment and purification. It is also used as a cleaning agent for its disinfectant properties, and it is used in bandages, soaps, and medicines. Iodine has a synthetic radioactive isotope, iodine-131, which is used to treat thyroid diseases. It is created in nuclear reactions from power plants and weapons testing.

GHS Hazard Statement: H302, H312, H315, H317, H319, H330, H332, H335, H372, H400, H410, GHS06, GHS07, GHS08, GHS09