Facts about the History and the Discovery of the Osmium Element; Osmium was discovered by Smithson Tenant in 1803 London, England ...
http://www.periodic-table.org.uk/element-osmium.htm
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A man named Smithson Tennant discovered osmium, along with the element iridium, in 1803. Tennant had begun to wonder what the black metallic substance was, which was created every time unrefined platinum was treated with aqua regia (a combination of nitric and hydrochloric acids).
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web1.caryacademy.org/chemistry/rushin/StudentProjects/E...
web1.caryacademy.org/chemistry/rushin/StudentProjects/ElementWebSites/osmium/Osmium_discovery.html
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Osmium - Wikipedia, the free encyclopedia
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Osmium (pronounced /ˈɒzmiəm/ , OZ -mee-əm ) is a chemical element that has the symbol Os and atomic number 76. Osmium is a hard, brittle, blue-gray or blue-black transition metal in ...
en.wikipedia.org/wiki/Osmium
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Osmium and iridium were discovered at the same time by the British chemist Smithson Tennant in 1803. Osmium and iridium were identified in the black residue remaining after dissolving platinum ore with aqua regia, a mixture of 25% nitric acid (HNO3) and 75% hydrochloric acid (HCl). Today, osmium is primarily...
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education.jlab.org/itselemental/ele076.html
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Osmium was discovered in 1804 by English chemist Smithson Tennant (1761-1815). Tennant found the new element in an ore of platinum. ... Osmium was one of the new elements discovered in impure platinum.
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www.chemistryexplained.com/elements/L-P/Osmium.html
www.chemistryexplained.com/elements/L-P/Osmium.html
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Osmium was discovered, in 1802, by Smithson Tennant, while working in London. Tennant made a partnership with W. H. Wollaston, in 1800, with the purpose of developing and improving the platinum refining technology. This solid was a compound of a new element, called osmium by those scientists. Its name derives from the...
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nautilus.fis.uc.pt/st2.5/scenes-e/elem/e07600.html
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Osmium was discovered by Smithson Tennant (England) in 1803. The origin of the name comes from the Greek word osme meaning smell. It is hard fine black powder or hard, lustrous, blue-white metal. Unaffected by air, water and acids.
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www.ktf-split.hr/periodni/en/os.html
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This WebElements periodic table page contains Essential information for the element osmium ... Osmium metal is lustrous, bluish white, extremely hard, and brittle even at high temperatures. It has the highest melting point and lowest vapour pressure of the platinum group.
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www.webelements.com/webelements/elements/text/Os/hist.h...
www.webelements.com/webelements/elements/text/Os/hist.html
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Discovered in 1803 by Tennant in the residue left over when crude platinum is dissolved by aqua regia. Osmium occurs in iridosmine and in platinum-bearing river sands of the Urals, North America, and South America.
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www.tamuk.edu/chemistry/WebElements/osmium_element.htm
www.tamuk.edu/chemistry/WebElements/osmium_element.htm
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