That is copper

That is copper?

Copper (Latin Cuprum, and this Greek Kypros), has the symbol Cu, is the chemical element of atomic number 29. This is a transition metal and reddish metallic luster, along with silver and gold, is part of the copper llamadafamilia, is characterized as one of the best conductors of electricity (second only to silver) . Thanks to its high electrical conductivity, ductility and malleability, has become the most commonly used material for manufacturing electrical cables and other electrical and electronic components. Copper is part of a very high amount of alloys generally have better mechanical properties, though they have a lower electrical conductivity. The most important are known as the debronces and brasses. Moreover, copper is a durable metal that can be recycled an almost unlimited number of times without losing their mechanical properties. He was one of the first metals to be used by humans in prehistory. Copper and its alloy with tin, bronze, acquired such importance that historians have called the Copper Age and the Bronze Age to two periods of antiquity. Although its use lost relative importance to the development of steel, copper and its alloys remained employed for such diverse objects as coins, bells and cannons. From the nineteenth century, specifically the invention of the electric generator in 1831 by Faraday, copper again became a strategic metal, being the main raw material of cables and wiring. Copper has an important biological role in the process of photosynthesis of plants, although not part of the composition of chlorophyll. The copper contributes to the formation of red blood cells and maintenance of blood vessels, nerves, bones immune system and therefore is an essential trace element for life human. Copper is found in a lot of habitual dietary foods such as oysters, seafood, vegetables, organ meats and nuts among others, in addition to water and therefore it is very rare that there is a deficiency of copper in the body. The copper imbalance in the body causes liver disease known as disease of Wilson. Copper is the third most widely used metal in the world after iron and aluminum. The world refined copper production was estimated at 15.8 Mt in 2006, with a deficit of 10.7% compared to the projected global demand of 17.7 Mt. Copper is a metallic element, reddish (see chart). Along with the silver and gold, are the "family of copper" (the best conductors of electricity). Million years ago and driven by geological processes-rose from the depths of the earth to the surface, so that was the first metals to be worked by humans in the form of native copper or high purity natural . Such deposits are nearly exhausted today on the planet, and it usually is found scattered over large areas and mixed with waste rock and other minerals.

In broad terms, these can be classified into two groups:

Sulphide ores

They are often composed of mixtures of copper and iron sulphides, in combination with other compounds of various elements

oxidized ores:

Applications and properties:

Its melting point is 1,083 ° C while its boiling point is about 2567 ° C, and has a density of 8.9 g/cm3. Its atomic mass is 63.546. Copper has a variety of applications because of their advantageous properties such as their high heat and electricity conductivity, corrosion resistance, and their malleability and ductility, plus its beauty. Due to its extraordinary conductivity, second only to silver, the wider use of copper occurs in the electrical industry. Its ductility cables to convert to any diameter from 0.025 mm. The tensile strength of the copper wire is stretched about 4,200 kg/cm2. Can be used on cables and power lines outdoors and indoor electrical wiring, cables and electrical machinery lamps in general: generators,

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