Install Steam
login
|
language
简体中文 (Simplified Chinese)
繁體中文 (Traditional Chinese)
日本語 (Japanese)
한국어 (Korean)
ไทย (Thai)
Български (Bulgarian)
Čeština (Czech)
Dansk (Danish)
Deutsch (German)
Español - España (Spanish - Spain)
Español - Latinoamérica (Spanish - Latin America)
Ελληνικά (Greek)
Français (French)
Italiano (Italian)
Bahasa Indonesia (Indonesian)
Magyar (Hungarian)
Nederlands (Dutch)
Norsk (Norwegian)
Polski (Polish)
Português (Portuguese - Portugal)
Português - Brasil (Portuguese - Brazil)
Română (Romanian)
Русский (Russian)
Suomi (Finnish)
Svenska (Swedish)
Türkçe (Turkish)
Tiếng Việt (Vietnamese)
Українська (Ukrainian)
Report a translation problem

░░█░░░░░░░░░░░░█
░█░░░░░░░░░░░░░░█
█▀▀██▐███▀▀██▐████
█░░█▌████░░█▌█████
█░░░▀▀▀▀░░░░▀▀▀▀░█
█░░░░█░░░░░░░░█░░█
█░░░░░█░░░░░░█░░░█
░█░░░░░▀▀▀▀▀▀░░░█
░░█░░░░░░░░░░░░█
░░░▀▀▄▄▄▄▄▄▄▄▀▀
It's COOL to be gay!
Post this on the wall of a homosexual friend and tell them how COOL they are
Courtois gave samples to his friends, Charles Bernard Desormes (1777–1838) and Nicolas Clément (1779–1841), to continue research. He also gave some of the substance to chemist Joseph Louis Gay-Lussac (1778–1850), and to physicist André-Marie Ampère (1775–1836). On 29 November 1813, Desormes and Clément made Courtois' discovery public. They described the substance to a meeting of the Imperial Institute of France. On 6 December, Gay-Lussac announced that the new substance was either an element or a compound of oxygen. It was Gay-Lussac who suggested the name "iode", from the Greek word ἰοειδής (ioeidēs) for violet (because of the colour of iodine vapor).
In 1811, iodine was discovered by French chemist Bernard Courtois, who was born to a manufacturer of saltpeter (an essential component of gunpowder). At that time of the Napoleonic Wars, saltpeter was in great demand in France. Saltpeter produced from French nitre beds required sodium carbonate, which could be isolated from seaweed collected on the coasts of Normandy and Brittany. To isolate the sodium carbonate, seaweed was burned and the ash washed with water.
Iodine occurs in many oxidation states, including iodide (I−), iodate (IO−
3), and the various periodate anions. It is the least abundant of the stable halogens, being the sixty-first most abundant element. It is even less abundant than the so-called rare earths. It is the heaviest essential element. Iodine is found in the thyroid hormones. Iodine deficiency affects about two billion people and is the leading preventable cause of intellectual disabilities.