Colbalt

Colbalt Cobalt Cobalt is a brittle, hard, transition metal with magnetic properties similar to those of iron. Cobalt is present in meteorites. Main Ore deposits in the world are found in Zaire, Morocco and Canada. Cobalt-60 (60Co) is an artificially produced isotope used as a source of g rays (high energy radiation). Cobalt salts colour glass a beautiful deep blue colour. Cobalt was discovered in 1735 by the Swedish chemist George Brandt. It has a relatively low strength and little ductility at normal temperatures, but is ductile at high temperatures. Cobalt melts at about 1495° C (about 2723° F), boils at about 2870° C (about 5198° F), and has a relative density of 89km/m cubed; the atomic weight of cobalt is 58.933. Cobalt is a Metal in the periodic table; it is number 27 on the list. It is not abundant and it’s a transition metal. It is 30th in order by weight and is widely distributed in the earth but only in small amounts. It is found in the earth’s crust at 29ppm (parts per million) but traces of it are found in the sea and fresh water. Cobalt is mined throughout the world. In 1980 32700 tonnes of cobalt was mined. cobalt, found, about, alloys, ore, metal, main, high, cobaltite, australia, wa, nickel, magnetic, it’s, amounts, zaire, world, western, weight, tungsten, transition, temperatures, temperature, steel, small, produces, produced, oxide, number, normal, must, mined, made, lead, cutting, copper