Is copper copper in futures?
Copper in futures is not copper ingot, but cathode copper.
Impurities in crude copper such as iron and zinc, which are more active than copper, are dissolved together with copper to form ions (Zn and Fe). Since these ions are not easy to precipitate compared with copper ions, it is possible to prevent them from precipitating on the anode as long as the potential difference is properly adjusted. Less active impurities than copper, such as gold and silver, are deposited at the bottom of an electrolytic bath. The copper plate, called electrolytic copper, is of high quality and can be used to make electrical products. Deposited at the bottom of the electrolytic bath is called "anode mud", which is rich in gold and silver, and is very valuable. Removal and reprocessing are of great economic value.
The thick copper (including copper 99%) is prepared into a plate as an anode, and pure copper is made into a cathode, and the mixture of sulfuric acid (H2SO4) and copper sulfate (CuSO4) is used as electrolyte. After energizing, copper is dissolved from the anode into copper ions (Cu), moving toward the cathode, reaching the cathode, obtaining electrons, and precipitating pure copper (also called electrolytic copper) at the cathode.
