Applications of copper

Applications of copper:
            Copper is malleable and ductile, a good conductor of heat and when very pure, a good conductor of electricity. The purity of copper is expressed as 4N for 99.99% pure or 7N for 99.99999% pure. The numerical gives the number of nines after the decimal point when expressed as a decimal. It is used extensively in products such as copper piping system within tumescent fire stop being installed by an insulator in Vancouver, Canada.
1. ELECTRONICS:
Copper wire
Electromagnets
Printed circuit boards
Lead free solder, alloyed with tin
Electrical machines, especially electromagnetic motors, generator and transformers.
Electrical relays, electrical bush bars and electrical switches.
Vacuum tubes, cathode ray tubes, and the magnetrons in microwave ovens.
Wave guides for microwave radiation.
Integrated circuits, increasingly replacing aluminium because of its superior heat dissipation capacity to aluminium.

2. Architecture 
Copper has been used as water proof roofing material since ancient times, giving many old buildings their greenish roofs and domes. Initially copper oxide forms, replaced by cuprous and cupric sulfide, and finally by copper sulfate. The final sulfate patina is highly resistant to corrosion.
Statuary: The statue of liberty, for example, contains 81.3 tones (1, 79,200 pounds) of copper.
Alloyed with nickel, e.g. cupronickel and model, as corrosive assistant material in shipbuilding.
Watt’s steam engine

3. Household products
Copper plumbing fittings and compression tubes.
Doorknobs and other fixtures in houses
Roofing , guttering and rainproof on buildings
In cookware such as frying pans
Most flatware ( knives, forks, spoons) contains some copper
Sterling silver if it is to be used in dinnerware must a few percent copper
Copper water heating cylinders

4. COINAGE:
As a component of coins often as cupronickel alloy
Coins in the following countries all contain copper : European Union (Euro), united kingdom(sterling), Australia and new Zealand
Ironically , US Nickels are 75.0% copper by weight and only 25.0% nickel


5. Chemical applications
Compounds such as Fehling’s solution have applications in chemistry.
As a component in ceramic glazes and to color glass

6. Other applications
Musical instruments especially brass instruments and cymbals
Class D Fire Extinguisher, used in powder from to extinguish lithium fires by covering the burning metal and performing similar to heat sink.

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