What kind of process is electrolytic copper and what are its common uses?
What kind of process is electrolytic copper and what are its common uses. The blister copper (containing 99% copper) is pre-made into a thick plate as the anode, the pure copper is made into a thin sheet as the cathode, and the mixed solution of sulfuric acid (H2SO4) and copper sulfate (CuSO4) is used as the electrolyte. After electrification, copper dissolves from the anode into copper ions (Cu) and moves to the cathode. After reaching the cathode, electrons are obtained and pure copper (also known as electrolytic copper) is precipitated at the cathode. Impurities in blister copper, such as iron and zinc, which are more active than copper, will dissolve together with copper as ions (Zn and Fe). Since these ions are less likely to be precipitated than copper ions, the precipitation of these ions on the cathode can be avoided as long as the potential difference is properly adjusted during electrolysis. Impurities less reactive than copper, such as gold and silver, are deposited on the bottom of the cell. The copper plate produced in this way, called "electrolytic copper", is of high quality and can be used for electrolytic copper to make electrical products.
What does electrolytic copper mean? It can be simply understood that the thick plate of blister copper is used as the anode, the pure copper is made of thin plate as the cathode, and the mixed solution of sulfuric acid (H2SO4) and copper sulfate (CuSO4) is used as the electrolyte. This sentence can be understood as treating blister copper, pure copper, and electrolyte as a whole energized circuit. The blister copper is used as the anode of the battery, the pure copper is used as the cathode of the battery, and the electrolyte is regarded as a wire. The blister copper releases bivalent copper ions, which are removed to the cathode through the wire, that is, the electrolyte. Since the iron and zinc (Fe and Zn) in blister copper are chemically more active than copper, in the mixed solution of sulfuric acid (H2SO4) and copper sulfate (CuSO4), electrons must be lost to form positive divalent zinc. ions and positive trivalent iron ions.
In this way, the copper ions formed by the blister copper obtain the electrons lost by Fe and Zn, and form pure copper attached to the pure copper flakes of the cathode. In this way, the blister copper becomes thinner and thinner, while the pure copper sheet becomes thicker and thicker due to the transfer of blister copper to form pure copper. It can be simply understood that electrolytic copper is a process of converting blister copper, that is, copper containing impurities, into pure copper.
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