- published: 20 Feb 2014
- views: 1117469
Iodine is a chemical element with the symbol I and atomic number 53. The name is pronounced /ˈaɪ.ɵdaɪn/ EYE-o-dyne, /ˈaɪ.ɵdɨn/ EYE-o-dən, or /ˈaɪ.ɵdiːn/ EYE-o-deen in both American and British English. The name is from Greek ἰοειδής ioeidēs, meaning violet or purple, due to the color of elemental iodine vapor.
Iodine and its compounds are primarily used in nutrition, and industrially in the production of acetic acid and certain polymers. Iodine's relatively high atomic number, low toxicity, and ease of attachment to organic compounds have made it a part of many X-ray contrast materials in modern medicine. Iodine has only one stable isotope. A number of iodine radioisotopes are also used in medical applications.
Iodine is found on Earth mainly as the highly water-soluble iodide I-, which concentrates it in oceans and brine pools. Like the other halogens, free iodine occurs mainly as a diatomic molecule I2, and then only momentarily after being oxidized from iodide by an oxidant like free oxygen. In the universe and on Earth, iodine's high atomic number makes it a relatively rare element. However, its presence in ocean water has given it a role in biology. It is the heaviest essential element utilized widely by life in biological functions (only tungsten, employed in enzymes by a few species of bacteria, is heavier). Iodine's rarity in many soils, due to initial low abundance as a crust-element, and also leaching of soluble iodide by rainwater, has led to many deficiency problems in land animals and inland human populations. Iodine deficiency affects about two billion people and is the leading preventable cause of intellectual disabilities.
Year 135 (CXXXV) was a common year starting on Friday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Lupercus and Atilianus (or, less frequently, year 888 Ab urbe condita). The denomination 135 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
Everything You Need to Know About Iodine
Iodine, the Ultimate Healing Trace Minerals for Cysts, Thyroid, PCOD and more
Nascent Iodine Benefits The Govt Doesn't Want You to Know About
Iodine dosages
7 Foods Rich in Iodine
Dr Jorge D. Flechas, MD - Whole Body Iodine Sufficiency
The Benefits of Iodine
Iodine Benefits - 18 Facts You Didn't Know About Iodine
The Iodine Conspiracy
Dr. Brownstein all you need to know about iodine deficency.
Icon For Hire - Iodine (Lyrics On Screen Video HD) New Power pop/ Alternative 2011
Dr. David Brownstein on Iodine Part 1/3
Making Lugol's Iodine (Part 1 of 2)
How to Perform the Iodine Patch Test