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copper

Copper is a soft, reddish metal. Due to its high electrical conductivity, large amounts of copper are used by the electrical industry for wire. Of all pure metals, only silver has a higher electrical conductivity. Copper is also resistant to corrosion caused by moisture, making it a widely used material in pipes, coins, and jewelery. Copper is often too soft for its applications, so it is incorporated in numerous alloys. For example, brass is a copper-zinc alloy, and bronze is a copper-tin alloy. Copper sulfate? (CuSO 4·H2O), also known as blue vitrol?, is the most well-known copper compound. It is used as an agricultural poison, an algicide?, and as a pigment for inks. Cuprous chloride? (CuCl) is a powder used to absorb carbon dioxide (CO2). Copper cyanide? (CuCN) is often used in electroplating applications. Copper is available as metal and compounds with purities from 99% to 99.9999% (ACS grade to ultra-high purity); metals in the form of foil, sputtering target, and rod, and compounds as submicron and nanopowder?. The origin of the word copper comes from the Latin word 'cuprium?' which translates as "metal of Cyprus". Cyprus, a Mediterranean island, was known as an ancient source of mined copper. Copper, American Elements (external link)

Copper is essential to all living organisms as a trace dietary mineral because it is a key constituent of the respiratory enzyme? complex cytochrome c oxidase. In molluscs and crustacea copper is a constituent of the blood pigment hemocyanin?, which is replaced by the iron-complexed hemoglobin? in fish and other vertebrates. The main areas where copper is found in humans are liver, muscle and bone. Copper compounds are used as bacteriostatic substances, fungicides, and wood preservatives. Wikipedia, Copper (external link)

Copper is an essential micronutrient (external link), There are about seven nutrients essential to plant growth and health that are only needed in very small quantities. These are manganese?, boron?, copper, iron, chlorine?, molybdenum?, and zinc. Though these are present in only small quantities, they are all necessary.

Copper is a component of some enzymes. Symptoms of copper deficiency include browning of leaf tips and chlorosis?. Wikipdeia, micronutrient (external link)

See Also

Brass
Bronze
Copper Globe


Page last modified on Monday 26 of August, 2013 07:22:41 MDT

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