What are the uses of iodine?
Credit:Medic ImageUniversal Images GroupGetty Images
Q:

What are the uses of iodine?

A:

Quick Answer

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.

 Know More

Full Answer

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

Related Questions

  • Q:

    Why does iodine react with starch?

    A:

    When iodine and starch interact, iodine molecules become arranged within the starch molecules in a linear fashion. The visible end result of this arrangement is the appearance of a blue-black coloration.

    Full Answer >
    Filed Under:
  • Q:

    What is the haloform reaction?

    A:

    A haloform reaction is a chemical reaction during which a methyl ketone is halogenated by chlorine, bromine or iodine in the presence of a base to form a haloform. A haloform is an alkyl halide.

    Full Answer >
    Filed Under:
  • Q:

    What elements form salts?

    A:

    The chemical elements that typically form salts include fluorine, chlorine, iodine, bromine and astatine. These elements are commonly referred to as "halogens," comprising group 17, or group VIIA, of the periodic table.

    Full Answer >
    Filed Under:
  • Q:

    What is the chemical formula for iodine bromide?

    A:

    The chemical formula for iodine bromide is BrI. Iodine bromide contains one atom of bromine and one atom of iodine and has a molecular weight of 206.8 grams/mol. Other names used to identify this chemical compound include iodine monobromide and bromoiodine.

    Full Answer >
    Filed Under:

Explore