Cobalt Cobalt27co58.93 by: Alyx Guthrie. Properties Boiling Point:2,870°C Boiling Point:2,870°C Melting Point:1,735°C Melting Point:1,735°C Specific gravity:8.9(20°C)

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Presentation transcript:

cobalt Cobalt27co58.93 by: Alyx Guthrie

Properties Boiling Point:2,870°C Boiling Point:2,870°C Melting Point:1,735°C Melting Point:1,735°C Specific gravity:8.9(20°C) Specific gravity:8.9(20°C) Cobalt is hard, brittle metal Cobalt is hard, brittle metal Similar in appearance to iron and nickel Similar in appearance to iron and nickel Has a magnetic permeability around 2/3 that of iron Has a magnetic permeability around 2/3 that of iron

Uses Compounds are used in paint pigments Compounds are used in paint pigments Salts are used for the production of brilliant and permanent blue colors in porcelain, glass, pottery, tiles, and enamel Salts are used for the production of brilliant and permanent blue colors in porcelain, glass, pottery, tiles, and enamel Used in magnet steels and stainless steels Used in magnet steels and stainless steels Alloyed with iron, nickel, and other metals to make Alnico Alloyed with iron, nickel, and other metals to make Alnico An alloy of unusual magnetic strength (jet engines and turbine engines) An alloy of unusual magnetic strength (jet engines and turbine engines)

Facts About Cobalt *Founded By: Georg Brandt 1735,Sweden *Origin of name; from the German word meaning “kobald meaning “goblin or evil spirit *Color; Iustrous, metallic,greyish tinge *Minerals containing cobalt were of value to the early civilisations of Egypt and Mesopotamia for coloring glass deep blue

Cobalt Basic Info. Atomic num. =27 Atomic weight Symbol= Co Color Iustrous,metallic, Greyish tinge Hard, brittle metal Uses Used in paint Pigments Jet engines And turbine Engines

Sources Sources Weblelements /scholar/elements/periodic- table/uses