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Iodine (I) 53 ἰώδης (iodes) Greek via French "violet" descriptive (colour) Named after the Greek ἰώδης (iodes), which means "violet", because of the colour of the gaseous phase. This word was adapted as the French iode, which is the source of the English "iodine". [42] Xenon (Xe) 54 ξένος (xenos) Greek "foreign"
This is an accepted version of this page This is the latest accepted revision, reviewed on 16 February 2025. This article is about the chemical element. For other uses, see Iodine (disambiguation). Chemical element with atomic number 53 (I) Iodine, 53 I Iodine Pronunciation / ˈ aɪ ə d aɪ n, - d ɪ n, - d iː n / (EYE -ə-dyne, -din, -deen) Appearance lustrous metallic gray solid ...
Kazakhstan, a country in Central Eurasia in which local food supplies seldom contain sufficient iodine, has drastically reduced iodine deficiency through salt iodization programs. Campaigns by the government and non-profit organizations to educate the public about the benefits of iodized salt began in the mid-1990s, with iodization of edible ...
Despite the new controls, authorities observed that Pervitin consumption rose rapidly, and so did civilian production, from about seven and a half million tablets in 1941 to nine million tablets in 1942 and a similar amount the following year, to eight million tablets in 1944. As a rule, military production was about half of civilian production.
Iodine: 1811 B. Courtois: 1811 B. Courtois Courtois discovered it in the ashes of seaweed. [118] The name iode was given in French by Gay-Lussac and published in 1813. [52] Davy gave it the English name iodine in 1814. [52] 3 Lithium: 1817 A. Arfwedson: 1821 W. T. Brande: Arfwedson, a student of Berzelius, discovered the alkali in petalite. [119]
The addition of iodine to table salt (so-called iodized salt) has largely eliminated the most severe consequences of iodine deficiency in wealthier nations, but deficiency remains a serious public health problem in the developing world. [60] Iodine deficiency is also a problem in certain areas of Europe; in Germany, an estimated one billion ...
Iodine, an element essential for human health, [17] is present only in small amounts in sea salt. [18] Iodised salt is table salt mixed with a minute amount of various salts of the element iodine. Studies have found some microplastic contamination in sea salt from the US, Europe and China. [19]
Iodine deficiency affects about two billion people around the world and is the leading preventable cause of intellectual disabilities. [43] Iodized table salt has significantly reduced disorders of iodine deficiency in countries where it is used. [44] The amount of iodine and the specific iodine compound added to salt varies.