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Cobalt - Wikipedia
https://en.wikipedia.org/wiki/Cobalt
webCobalt is a ferromagnetic metal with a specific gravity of 8.9. The Curie temperature is 1,115 °C (2,039 °F) and the magnetic moment is 1.6–1.7 Bohr magnetons per atom. Cobalt has a relative permeability two-thirds that of iron. Metallic cobalt occurs as two crystallographic structures: hcp and fcc. The ideal transition temperature between ...
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Cobalt | Uses, Properties, & Facts | Britannica
https://www.britannica.com/science/cobalt-chemical-element
webMar 18, 2024 · cobalt (Co), chemical element, ferromagnetic metal of Group 9 (VIIIb) of the periodic table, used especially for heat -resistant and magnetic alloys. The metal was isolated (c. 1735) by Swedish chemist Georg Brandt, though cobalt compounds had been used for centuries to impart a blue colour to glazes and ceramics.
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Cobalt - Element information, properties and uses | Periodic Table
https://www.rsc.org/periodic-table/element/27/cobalt
webRadioactive cobalt-60 is used to treat cancer and, in some countries, to irradiate food to preserve it. Biological role. Cobalt is an essential trace element, and forms part of the active site of vitamin B12. The amount we need is very small, and the body contains only about 1 …
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Cobalt is in demand, so why did America's only cobalt mine …
https://www.npr.org/2023/12/14/1219246964/cobalt-is-important-for-green-energy-so-why-has-americas-only-coablt-mine-closed
webDec 14, 2023 · Eric Whitney/NPR. A Star is Born: Cobalt's meteoric rise. Cobalt's rise to fame and fortune has been pretty meteoric. It's probably the closest thing the periodic table has to a TikTok star....
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Cobalt Statistics and Information | U.S. Geological Survey - USGS.gov
https://www.usgs.gov/centers/national-minerals-information-center/cobalt-statistics-and-information
webCobalt (Co) is a metal used in numerous diverse commercial, industrial, and military applications, many of which are strategic and critical. On a global basis, the leading use of cobalt is in rechargeable battery electrodes. Superalloys, which are used to make parts for gas turbine engines, are another major use for cobalt.
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Cobalt Facts and Physical Properties - ThoughtCo
https://www.thoughtco.com/cobalt-element-facts-606520
webAug 17, 2021 · Properties. Cobalt has a melting point of 1495°C, boiling point of 2870°C, specific gravity of 8.9 (20°C), with a valence of 2 or 3. Cobalt is a hard, brittle metal. It is similar in appearance to iron and nickel. Cobalt has a …
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Cobalt | History, Uses, Facts, Physical & Chemical Characteristics
https://periodic-table.com/cobalt/
webDefinition, mass & chemical names. Cobalt is transition metal and was discovered in pure form in 1735. It is essential part of vitamin B12. Its compounds are known as cobalt blue used to color pottery and glass. History and Discovery. Cobalt has been used as a coloring agent since Bronze Age.
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Cobalt powers our lives. What is it—and why is it so controversial?
https://www.nationalgeographic.com/environment/article/cobalt-mining-congo-batteries-electric-vehicles
webBy Kara Norton. December 21, 2023. Cobalt is essential for powering our modern technology. The metal is commonly used to make lithium-ion batteries, which are found in items such as electric...
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What to Know About the Frantic Quest for Cobalt - The New York Times
https://www.nytimes.com/2021/11/20/world/china-congo-cobalt-explained.html
webNov 20, 2021 · This is what we found. Miners hauled bags of cobalt in southeast Democratic Republic of Congo. Ashley Gilbertson for The New York Times. By Eric Lipton , Dionne Searcey and Michael Forsythe....
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cobalt summary | Britannica
https://www.britannica.com/summary/cobalt-chemical-element
webcobalt, Metallic chemical element, one of the transition element s, chemical symbol Co, atomic number 27. Widely dispersed in small amounts in many minerals and ores, this magnetic, silvery white metal with a faint bluish tinge is used mostly for special alloys (e.g., alnico, tool steel) with exacting applications.
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