Osmium (disambiguation)

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Osmium is a chemical element with symbol Os and atomic number 76.

Osmium Chemical element with atomic number 76

Osmium is a chemical element with 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, with an experimentally measured density of 22.59 g/cm3. Manufacturers use its alloys with platinum, iridium, and other platinum-group metals to make fountain pen nib tipping, electrical contacts, and in other applications that require extreme durability and hardness. The element's abundance in the Earth's crust is among the rarest.

Osmium may also refer to:

<i>Osmium</i> (album) 1970 studio album by Parliament

Osmium is the debut album of American funk band Parliament, led by George Clinton. The album has a psychedelic soul sound with a spirit of experimentation that is more similar to early Funkadelic than the later R&B-inspired Parliament albums. It was originally released in September 1970 on Invictus Records. The original vinyl release contained a glossy lyric sheet.

<i>Cabal Online</i> video game

Cabal Online is a free-to-play, 3D massively multiplayer online role-playing game developed by South Korean company ESTsoft. Different localizations of the game exist for various countries and regions. Although free-to-play, the game makes use of the freemium business model by implementing an "Item Shop", both in-game and via web, allowing players to purchase special premium coins using real currency, in order to acquire exclusive game enhancements and features, useful items and assorted vanity content.

See also

Osmium (76Os) has seven naturally occurring isotopes, six of which are stable: 184Os, 187Os, 188Os, 189Os, 190Os, and (most abundant) 192Os. The other natural isotope, 186Os, has an extremely long half-life (2×1015 years) and for practical purposes can be considered to be stable as well. 187Os is the daughter of 187Re (half-life 4.56×1010 years) and is most often measured in an 187Os/188Os ratio. This ratio, as well as the 187Re/188Os ratio, have been used extensively in dating terrestrial as well as meteoric rocks. It has also been used to measure the intensity of continental weathering over geologic time and to fix minimum ages for stabilization of the mantle roots of continental cratons. However, the most notable application of Os in dating has been in conjunction with iridium, to analyze the layer of shocked quartz along the Cretaceous–Paleogene boundary that marks the extinction of the dinosaurs 66 million years ago.

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Osmium tetroxide chemical compound

Osmium tetroxide (also osmium(VIII) oxide) is the chemical compound with the formula OsO4. The compound is noteworthy for its many uses, despite its toxicity and the rarity of osmium. It also has a number of interesting properties, one being that the solid is volatile. The compound is colourless, but most samples appear yellow. This is most likely due to the presence of the impurity OsO2, which is yellow-brown in colour.

Parliament (band) American funk band most prominent during the 1970s

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