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Медь

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Брелок 20х30 мм. Медь. Cu Keyring 20x30 mm. Articul: pt29
600,00 ₽
Брелок 20х40 мм. Медь (Cu) Cu keychain 20x40 mm. Articul: 29177
700,00 ₽
Брелок РМК RMK keychain
700,00 ₽
Брелок. Медь в шариках. Trinket. Copper in balls. Articul: 2917120420
700,00 ₽
Брелок. Медь. Trinket. Copper. Articul: 2987120420
550,00 ₽
Игральная кость классическая 10 мм. Cu Dice classic 10 mm Cu Articul: dc15
500,00 ₽
Игральная кость куб 12 мм. Cu Dice 12 mm Cu Articul: dc1
500,00 ₽
Игральная кость тетраэдр (4 грани). Cu Dice tetrahedron Cu Articul: dc10
500,00 ₽
Кулон. Медь. Pendant. Copper. Articul: 2918120320
790,00 ₽
Медный кубик (Cu), 99,9%, 1 дюйм (25,4 мм) Copper 99.9 (Cu) 1 inch cube Articul: 1inch29
1 400,00 ₽
Copper cube (Cu), 99.95%, 10x10 mm. Articul: 29131140119
990,00 ₽
Медь (Cu), 99,9%  – фольга. Copper (Cu), 99.9% - foil. Articul: 2982130618
200,00 ₽
Пуговица 18 мм. Медь. Cu. Chemical button 18 mm. Articul: but29
340,00 ₽
Медь

 
Atomic number     29
Atomic mass       63,546
Density, kg / m ?     8960
Temperature
melting, ° С       1083
 
Copper is a ductile transition metal of golden pink color.
Copper is one of the metals known since ancient times. The early acquaintance of man with copper was facilitated by the fact that it is found in nature in a free state in the form of nuggets, which sometimes reach considerable sizes. Copper and its alloys have played an important role in the development of material culture. Due to the easy reducibility of oxides and carbonates, copper was, apparently, the first metal that man learned to reduce from oxygen compounds contained in ores. The Latin name for Medi comes from the name of the island of Cyprus, where the ancient Greeks mined copper ore. In ancient times, to process rock, it was heated on a fire and quickly cooled, and the rock cracked. Even under these conditions, restoration processes were possible. Subsequently, the restoration was carried out in bonfires with a large amount of coal and with air blowing through pipes and bellows. The fires were surrounded by walls, which were gradually increased, which led to the creation of a shaft furnace. & Nbsp;

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