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Chemistry of Copper Electrolysis

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Chemistry of Copper Electrolysis ( chemistry-copper-electrolysis )

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GLOSSARY anode 1. An electrode through which conventional current flows into a polarized electrical device; in electrolysis, it is the positive terminal. 2. In copper processing, a copper anode is an intermediate product from the smelting furnaces which is used as a copper source from which to make copper cathodes during electrolysis. aqueous Of or containing water, typically as a solvent or medium; i.e., an aqueous solution. cation A positively-charged ion that is attracted to the cathode (negative terminal) in electrolysis. cathode 1. An electrode from which conventional current leaves a polarized electrical device; in electrolysis, it is the negative terminal. 2. In copper processing, a copper cathode is the final, 99.99% pure product of the electrolysis process, and is itself the primary raw material input for the production of finished copper products, such as rode, tubes, and wires. copper A reddish-brown, ductile, malleable metallic element that is an excellent conductor of heat and electricity and is widely used for electrical wiring. electrode An electrical conductor, though which a current enters or leaves an electrolytic cell or other medium. electrolysis Generally, a technique that uses an electric current to drive an otherwise non-spontaneous chemical reaction. Typically, an electrical potential is applied across a pair of electrodes (anode and cathode) immersed in an electrolyte solution, resulting in the movement of positively charged ions (cations) moving toward cathode and negatively charged ions (anions) toward the anode. For copper sulfide ore, electrolysis is the final stage in the process of pyrometallurgy, in which anode copper slabs are hung in a large tank full of a copper-based electrolyte solution and an electric current is applied, resulting in the plating of copper onto 99.9% pure copper cathodes. electrolyte A chemical compound that conducts electricity by changing into ions when melted or dissolved into a solution.

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