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Topic: Johan August Arfwedson

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	Johan August Arfwedson - Wikipedia, the free encyclopedia
		Johan August Arfwedson (January 12, 1792 - October 28, 1841), Swedish chemist and the discoverer of lithium (1817).
		He matriculated as a student at the University of Uppsala in 1803 (at the time, matriculating at a young age was common for aristocratic and wealthy students), completed a degree in Law in 1809 and a second degree in mineralogy in 1812.
		In Stockholm, Arfwedson knew the chemist Jöns Jakob Berzelius and received access to his private laboratory, where he made the discovery of the element lithium in 1817, during analysis of the mineral petalite.
	en.wikipedia.org /wiki/Johann_Arfvedson (228 words)

	Biography of Arfwedson (Site not responding. Last check: 2007-11-06)
		Arfwedson, a metallurgist, chemist, and mineralogist, was born in 1792 in Sweden.
		Arfwedson entered college in 1806, completed a mining course and examination, and then entered the Royal Bureau of Mines at Stockholm.
		In fact, it was uranium(IV) oxide, UO In 1841, the Swedish Academy of Sciences awarded Arfwedson a gold medal in honor of his discovery of lithium.
	genchem.chem.wisc.edu /lab/PTL/PTL/BIOS/arfwdson.htm (109 words)

	CONK! Encyclopedia: List_of_chemists (Site not responding. Last check: 2007-11-06)
		Francois Auguste Victor Grignard, (1871-1935), 1912 Nobel Prize in Chemistry corecipient
		Roald Hoffmann, (born 1937), Polish-born American chemist, 1981 Nobel Prize in chemistry
		Friedrich August KekulÃ© von Stradonitz, (1829-1896), German organic chemist
	www.conk.com /search/encyclopedia.cgi?q=List_of_chemists (747 words)

	03 Lithium
		Johan August Arfwedson (also Arfvedson, 1792-1841), a student of Jakob Berzelius, analyzed in 1817 the mineral petalite (LiAlSi
		Arfwedson found the rock was roughly 80% silica, 17% alumina, and 3% alkali.
		Two careful repetitions convinced Arfwedson that it was a new element which has a greater capacity to react than the other alkalies.
	elements.vanderkrogt.net /elem/li.html (417 words)

	Johan August Arfwedson -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-11-06)
		Johan August Arfwedson -- Facts, Info, and Encyclopedia article
		He matriculated as a student at the (Click link for more info and facts about University of Uppsala) University of Uppsala in 1803 (at the time, matriculating at a young age was common for aristocratic and wealthy students), completed a degree in Law in 1809 and a second degree in mineralogy in 1812.
		The rare (Solid homogeneous inorganic substances occurring in nature having a definite chemical composition) mineral (Click link for more info and facts about arfvedsonite) arfvedsonite was named after him.
	www.absoluteastronomy.com /encyclopedia/j/jo/johan_august_arfwedson.htm (196 words)

	Ceimeagairean Ainmeil - Wikipedia
		Francois Auguste Victor Grignard, (1871-1935), 1912 Duais Nobel ann an Ceimeagachd 1912
		Roald Hoffmann, (born 1937), Ceimeagair Aimearaganach, Duais Nobel ann an Ceimeagachd 1981
		Friedrich August Kekulé von Stradonitz, (1829-1896), Ceimeagair Gearmailteach
	gd.wikipedia.org /wiki/Ceimeagairean_Ainmeil (357 words)

	History of the Origin of the Chemical Elements and Their Discoverers
		It was discovered by the Swedish mineralogist Johan August Arfwedson in 1818 in the mineral petalite LiAl (S1205)2.
		It was isolated in 1855 by the German chemist Robert Wilhelm Bunsen and Augustus Matthiessen.
		In 1794, the Finnish chemist Johan Gadolin discovered yttrium in the mineral ytterbite, which was later renamed gadolinite for Gadolin.
	www.nndc.bnl.gov /content/elements.html (11235 words)

	Constructed Names, page 1 of 2
		Johan August Arfwedson (1792-1841) was a skillful young chemist studying chemistry under Berzelius.
		In 1818 he analyzed a rock previously discovered by a Brazilian, José Bonifácio de Andrada e Silva, while touring the Scandinavian island of Utö which is two miles into the Baltic.
		We have given this alkali the name of Lithion to recall that it was discovered in the mineral kingdom, whereas the two others were [discovered] in the vegetable kingdom.
	homepage.mac.com /dtrapp/Elements/combination.html (2469 words)

	Li Facts
		It is so light, if you put it in water, it actually floats!
		It was discovered in 1817 by Johan August Arfwedson, a Swedish Chemist.
		This is one of the only metals that cannot be found in it's pure form, it is only found in elements that that are related to it like Lithium Hydride.
	www.fairfield.k12.ct.us /tomlinson/element/li_facts.htm (77 words)

	Alkali Metals
		It is less dense than water (with which it reacts) and forms a fl oxide in contact with air.
		Lithium was discovered in 1817 by Johan August Arfwedson but not isolated until some time later by W.T. Brande and Sir Humphry Davy.
		In its mineral forms it accounts for only 0.0007% of the earth's crust.
	www.3rd1000.com /elements/alkali.htm (772 words)

	Postgraduate Educational Material 1: Lithium Toxicity - A Review: Anil Aggrawal's Internet Journal of Forensic Medicine
		Lithium salts have been used in therapeutics for quite sometime.
		However in the US, the doctors were so skeptical about it (because of earlier deaths of patients taking lithium chloride as salt substitute), that they did not use it till 1970!
		Lithium was discovered by the Swedish scientist Johan August Arfwedson (1792-1841) in 1817, who believed it to be a new kind of alkali.
	www.geradts.com /anil/ij/vol_001_no_002/pg001.html (1976 words)

	wquest index (Site not responding. Last check: 2007-11-06)
		Arfwedson, Johan August @ Linkandouml:pings SE Astbury, William T. @ Leeds UK Aston, Francis William
		Rydberg, Johan Robert (Janne) @ Halmstad SE Sabatier, Paul
		Use these scores to rank the scientists that you chose and discover the greatest chemist ever!!!!
	www.wam.umd.edu /~zkt/webquest/task.html (740 words)

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