Cobalt is a chemical element; it has symbol Co and atomic number 27. As with nickel, cobalt is found in the Earth's crust only in a chemically combined form, save for small deposits found in alloys of natural meteoric iron. The free element, produced by reductive smelting, is a hard, lustrous, somewhat brittle, gray metal. Cobalt-based blue pigments (cobalt blue) have been used since antiquity ...
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Cobalt, metallic chemical element, one of the transition elements, atomic number 27. The metal is used especially for heat-resistant and magnetic alloys. A relatively large percentage of the world’s production goes into magnetic alloys such as the Alnicos for permanent magnets.
Element Cobalt (Co), Group 9, Atomic Number 27, d-block, Mass 58.933. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.
Cobalt (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.
What is Cobalt Cobalt (pronunciation: KO-bolt) is a hard, lustrous silvery-blue element belonging to the group of transition metals, and it is represented by the chemical symbol Co [1, 2, 3]. It is chemically active and can form many compounds [4]. It is a ferromagnetic metal that can be magnetized and is alloyed with nickel and aluminum to produce powerful magnets [1, 4].
Cobalt is a naturally occurring element found in rocks, soil, water, plants, and animals. Cobalt is used to produce alloys used in the manufacture of aircraft engines, magnets, grinding and cutting tools, artificial hip and knee joints. Cobalt compounds are also used to color glass, ceramics and paints, and used as a drier for porcelain enamel and paints. Radioactive cobalt is used for ...
Cobalt Cobalt is a chemical element with symbol Co and atomic number 27. It is a transition metal and is ferromagnetic. It is a hard with a silver to bluish-gray color. Used throughout antiquity as blue coloring for pigment, it was used to paint ceramics and glass. Cobalt was first isolated in 1735 by Georg Brandt. Its name comes from kobelt or kobold (German for gnome or spirit). It is used ...