According to WebMD, iodine is commonly used to prevent iodine deficiency and disinfect wounds. It can also be used to protect against radiation, treat ulcers and purify water.Continue Reading
Iodine is a chemical element found in seawater and some minerals and soils. The body needs iodine but cannot make it. Iodine must be introduced to the body through the diet. Most commercially available iodine is created by processing brine. About 70 to 80 percent of the iodine in the body is located in the thyroid gland. Iodine is necessary for the thyroid gland to make hormones. Lack of iodine creates an enlarged thyroid gland and a swollen neck and results in hypothyroidism. Hypothyroidism is indicated by fatigue, weight gain, dry skin and sensitivity to temperature changes. Iodine deficiency is more common in women than men.
Bernard Courtois discovered iodine in 1811 while trying to extract potassium from seaweed. After extracting the potassium from seaweed, he added sulfuric acid to the remaining liquid. The purple crystals resulting from this procedure helped give this element its name. The Greek word iodes means violet.
Iodine is slightly toxic and can be dangerous in large amounts. Pure iodine is a skin irritant, and the vapor is known to cause eye irritation.Learn more about Chemistry
A halogenated compound is a combination of one or more chemical elements that includes a halogen; halogens are a group of elements that include fluorine, astatine, chlorine, bromine and iodine. Halogens comprise the seventh column of the periodic table of the elements.Full Answer >
In a solution, iodine ions indicate the presence of starch by changing the color of the solution from yellow to intense blue. Iodine ions are typically added to a solution as potassium iodide.Full Answer >
Survivalists and outdoorsmen add iodine crystals to water, because iodine chemically purifies and disinfects untreated water. These crystals are used as a temporary measure, as iodine can be toxic in large quantities, especially for children.Full Answer >
The halogens found in seawater include fluorine, bromine and iodine. Chlorine is also found in seawater as part of salt and other chlorides. Halogens are found in group 17 of the periodic table.Full Answer >