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Osmium (from Ancient Greek ὀσμή (osmḗ) 'smell') is a chemical element; it has symbol Os and atomic number 76. It is a hard, brittle, bluish-white transition metal in the platinum group that is found as a trace element in alloys, mostly in platinum ores. Osmium is the densest naturally occurring element.
Osmium(I) iodide is a metallic grey solid produced by the reaction of osmium tetroxide and hydroiodic acid heated in a water bath for 48 hours in a carbon dioxide atmosphere. It is an amorphous compound. [34] Osmium(II) iodide is a black solid [35] produced by the reaction of osmium tetroxide and hydroiodic acid at 250 °C in nitrogen: [34]
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The chemical elements can be broadly divided into metals, metalloids, and nonmetals according to their shared physical and chemical properties.All elemental metals have a shiny appearance (at least when freshly polished); are good conductors of heat and electricity; form alloys with other metallic elements; and have at least one basic oxide.
Osmium(IV) fluoride is an inorganic chemical compound of osmium metal and fluorine with the chemical formula OsF 4. [1] [2] Synthesis. Passing fluorine over heated ...
Osmium tetrasulfide is an inorganic compound, a salt of osmium metal and hydrogen sulfide acid with the chemical formula OsS 4. [1] Synthesis
Osmium is a chemical element with symbol Os and atomic number 76. Osmium may also refer to: Osmium, the debut album of American funk band Parliament; Osmium weapons, a type of weapon material found in the online videogame Cabal Online
Osmium dioxide is an inorganic compound with the formula OsO 2. It exists as brown to black crystalline powder, but single crystals are golden and exhibit metallic conductivity. It exists as brown to black crystalline powder, but single crystals are golden and exhibit metallic conductivity.