CAS Number: 7440-48-4. Cobalt is a naturally occurring element found in rocks, soil, water, plants, and animals. There are non radioactive and radioactive forms of cobalt. Non-radioactive cobalt, referred to as stable cobalt, is used to produce metal 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 porcelein enamel and paints. Cobalt enters the environment from natural sources and the burning of coal or oil or the production of cobalt alloys. Chemical formula = Co. Molecular weight = 58.93 g/mol.
Blue-white metal, melting at 2715°F (1492°C), used in very hard alloy such as stellite, and a binder in carbide cutting tools.
An alloying element used in tool, magnet and heat resisting steels. Together with tungsten and molybdenum, cobalt is used to form the super high speed steels. It improves the red hardness value of the steel, that is, it enables the steel to resist softening at a high temperature or in the case of a cutting tool to hold its edge under severe conditions.
An alloying element used in super high speed steels, maraging steels, alloys for permanent magnets and in high temperature resistant alloys for use in jet engines.
Chemical symbol (Co), Cobalt was discovered in 1735 by Georg Brandt. Description: a silver-white, lustrous, hard metal that can be magnetised. Naturally occurring (with other metals) as the ores cobaltite and smaltite Cobalt alloys are used in very hard cutting tools, high-strength permanent magnets, and jet engines. radioactive form of cobalt, cobalt-60, is prepared by exposing naturally occurring cobalt-59 to the radiations of an atomic pile. The nucleus absorbs a neutron and becomes cobalt-60. This is a gamma and beta emitter. The beta rays are of low energy (said to be 'soft') and are easily absorbed by a metal coating on top of a cobalt source. The cobalt is then effectively only giving gamma rays to the surroundings. It has a half life of 5.3 years and decays to produce a daughter nuclide of nickel-60 (Stable) It is used: in industry in the inspection of materials to reveal internal structure, flaws, or foreign objects or as a radioactive tracer and in medical science in cancer therapy.
A silver-white metal, harder and stronger than iron or nickel. Used as an alloy in the making of steel and as a coloring material for many blue glasses which simulate gems.
a hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition
A brittle hard silvery-white element that is a ferromagnetic metal: used in alloys. Atomic No.: 27; atomic weight.: 58.933
Most often used in tool, magnet and heat-resisting steels, Cobalt improves the red hardness of the alloy. n alloying element used in tool, magnet and heat resisting steels. Used to form high speed steels with molybdenum and tungsten.
a metallic agent used in glass to produce dark and light shades of blue. Cobalt oxide is mixed with molten glass, cooled, and then ground into powder to produce a coloring agent for glass enamel. This enamel is also used in pottery and porcelain glazes.
gray, hard, magnetic, and somewhat malleable metal. Cobalt is relatively rare and generally obtained as a byproduct of other metals, such as copper. Its most common radioisotope, cobalt-60 (Co-60), is used in radiography and medical applications. Cobalt-60 emits beta particles and gamma rays during radioactive decay.
A blue pigment of cobalt oxide and alumina used for underglaze decoration.
A blue colored plastic. Examples of cobalt plastic.
One of the strongest coloring oxides used by the potter. Cobalt creates a dark dense royal blue in most cases. Historically used in China as a painting pigment on blue and white wares.
a gray, hard, magnetic, ductile, and somewhat malleable metal, cobalt is relatively rare and generally obtained as a byproduct of other metals, such as copper. Its most common radioactive isotope is cobalt-60, which emits beta particles during radioactive decay. Cobalt-60[] [ Click "BackButton" for previous location
the blue pigment used in the decoration of blue-and-white ware.
Cobalt is a tough lustrous silver-white magnetic metallic element that is related to and occurs with iron and nickel and is used especially in alloys.
An element which is similar to Iron, combined with Samarium to make one type of rare earth magnets and one of the constituent parts of alnico alloy magnets. (See also Alnico and Rare Earth Magnets).
A metal, resembling nickel, from which a range of blue pigments are made. (1)
A hard, lustrous, steel-gray, ductile metallic chemical element found in various ores. Metallic element: atomic number 27, atomic weight 58.933; atomic symbol Co.