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corrosion

(Encyclopedia)corrosion, atmospheric oxidation of metals (see oxidation and reduction). By far the most important form of corrosion is the rusting of iron. Rusting is essentially a process of oxidation in which iro...

Takaoka

(Encyclopedia)Takaoka täkäˈôkä [key], city (1990 pop. 175,466), Toyama prefecture, W central Honshu, Japan, on the Sho River. A center for the Japanese aluminum industry, Takaoka also produces paper, copper, a...

Tirebolu

(Encyclopedia)Tirebolu tĭrĕˈbōlo͞o [key], anc. Tripolis, town, N Turkey, a port on the Black Sea. Its exports include copper, manganese, and zinc. The remains of a Byzantine fortress are there. ...

aluminum

(Encyclopedia)aluminum ălˌyo͞omĭnˈēəm [key], metallic chemical element; symbol Al; at. no. 13; at. wt. 26.98154; m.p. 660.37℃; b.p. 2,467℃; sp. gr. 2.6989 at 20℃; valence +3. Aluminum is a silver-white...

Daly, Marcus

(Encyclopedia)Daly, Marcus, 1841–1900, American copper magnate, b. Ireland. He went to New York City at 15 and later moved to California, where he worked as a miner. He was employed by the “silver kings,” J. ...

britannia metal

(Encyclopedia)britannia metal, silvery-white alloy of tin with antimony, copper, and sometimes bismuth and zinc. It is very similar in appearance to pewter, but is harder. It is used widely for the manufacture of t...

Oskarshamn

(Encyclopedia)Oskarshamn ôsˌkärs-häˈmən [key], city (1990 pop. 17,790), Kalmar co., SE Sweden, a seaport on the Kalmarsund (an arm of the Baltic Sea); chartered 1856. Manufactures of this industrial center in...

azurite

(Encyclopedia)azurite ăzhˈərīt [key], blue mineral, the basic carbonate of copper, occurring in monoclinic crystals or masses that range from transparent to translucent and opaque. It is usually associated with...

Clausthal-Zellerfeld

(Encyclopedia)Clausthal-Zellerfeld klousˈtäl-tsĕlˈərfĕlt [key], town, Lower Saxony, central Germany, a resort in the Harz Mts. Its manufactures include textiles and wood products. The town was once a center f...

Flin Flon

(Encyclopedia)Flin Flon flĭn flŏn [key], city, in Saskatchewan, 330), on the Man.-Sask. border, Canada. It ...