Copper is a metallic element with the symbol Cu. It has 

an atomic weight of 63.55, a specific gravity of 8.96, 

and a melting point and boiling point of 1,083.4±0.2 ?C 

and 2,567 ?C, respectively. Featuring a light-rose or 

pinkish-red color in its natural state and a purple bronze 

color after oxidation, copper is one of the first metals 

discovered by man.

Copper cathode, also known as refined copper, is 

high-purity copper produced from copper concentrates 

through electrorefining or electrowinning (electrolytic 

deposition). Copper cathode standards include GB/

T 467-2010 (China), BS EN 1978:1998 (Europe), and 

ASTM B115 (U.S.)

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