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Cu
Copper


Atomic no.:
29
Atom. weight: 63.546
Density: 8.96
Class:
Heavy metal
Melting point: 1083°C
Boiling point: 2567°C
Colour: reddish shiny
   
Discoverer: prehistoric
Place:
Year:

Copper is a reddish colored metal which is malleable and ductile. It has excellent thermal and electrical conductivities and good corrosion resistance. It is found in sulfide ores and as carbonate, arsenide and chloride (abundance in the Earth's crust is 50 ppm). Extraction of the metal involves roasting the ore to produce the oxide, followed by reduction and purification by electrolysis. The element is inert to non-oxidising acids but reacts with oxidising agents. In air, it will weather to produce the characteristic green patina of the carbonate. Copper will combine with oxygen on heating to produce CuO at red heat, and Cu2O at elevated temperatures. Pure copper has an electrical conductivity second only to that of silver and hence its main application is in the electrical industry. Copper is also the basis of many important alloys (e.g. brass, bronze and aluminum bronze) and has been traditionally considered to be one of the coinage metals, along with silver and gold, but being more common, is the least valued. It is one of the first metals ever to have been worked by man and is thought to have been mined for more than 5000 years.

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 Pure copper granules 3mm- 99,99% purity under Argon 10 grams  Art. Nr. 004018  
Pure copper granules 3mm- 99,99% purity under Argon 10 grams
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Copper granules 3mm- 99,99% purity under Argon 10 grams

size: D3x3mm sealed in ampoule under argon.

For lab use

Amount: 10g
Purity : 99.99%
Packing: Ampoule /Argon
10.00
- tax free
5-9 pcs.: 9.00 Euro
>9 pcs.: 9.00 Euro
Availability: 83 in stock

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 Pure copper granules 3mm- 99,99% purity under Argon 50 grams  Art. Nr. 003940  
Pure copper granules 3mm- 99,99% purity under Argon 50 grams
magnify Click to zoom!

Copper granules 3mm- 99,99% purity under Argon 50 grams

size: D3x3mm sealed in ampoule under argon.

For lab use

Amount: 50g
Purity : 99.99%
Packing: Ampoule /Argon
20.00
- tax free

Availability: 2 in stock

All pictures are copyright protected and may not be used without our permission!

Request information
Amount:
 
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