Red copper, red copper, electrolytic copper respectively

Copper, element symbol Cu, mass 63.54, relative density 8.92, temperature 1083oC. Pure copper is light rose or light red, the surface of the formation of oxide film, the looks of copper. Copper has many valuable physical and chemical properties, like high thermal conductivity and electrical conductivity, strong chemical stability, high enduringness, easy to weld, corrosion resistance, plasticity, ductility. Pure copper may be drawn into very fine copper wire to create very thin copper foil. Can form alloys with zinc, tin, lead, manganese, cobalt, nickel, aluminum, iron and other metals.

The development of copper smelting technology has seasoned a protracted process, but to this point copper smelting continues to be supported fire smelting, its output accounts for about 85% of the world's total copper output. 1) method smelting usually copper first few percent or some parts per thousand of the initial ore, by dressing up to 20-30%, because the copper concentrate, in an airtight furnace, furnace, furnace, or flash furnaceanalyze matte smelting, output of molten matte (matte) then into the converter for converting into a thick copper, in another reasonably reverberatory furnace refining peroxide Canon to require off the noise, Or cast into the anode plate for electrolysis, grade up to 99.9% electrolytic copper. the method is brief and adaptable, and also the copper recovery rate can reach 95%. However, the sulfur within the ore is discharged as dioxide exhaust gas within the two stages of matting and blowing, which is difficult to recover and simple to cause pollution.

In recent years, like silver method, Noranda method melting pool melting and Japan's method, fire smelting gradually to continuous, automated development. 2) Modern wet smelting has acidification roasting-leaching-electrodeposition, leaching-extraction-electrodeposition, bacterial leaching and other methods, suitable for heap leaching, tank leaching or in-situ leaching of low-grade complex ore, oxide ore, copper bearing waste ore.

Electrolytic copper is that the final product of the copper smelting process. it's not ingot, but flake, with irregular edges (except when cut), and not very smooth surface.

Electrolytic copper will be said to be pure copper, the colour is redness, so it's also called "red copper" or "red copper", but in copper products, add alittle amount of other metals (such as zinc, etc.)

, so as to enhance the hardness of pure copper or other properties, because the quantity of adding is extremely small, the colour didn't produce big changes, generally referred to as "red copper" or "red copper".

If quite a specific percentage of zinc is added and copper turns yellow, it's "brass." Brass is way harder, but less ductile and malleable, and fewer conductive than red copper (red copper).