The thick plate made of crude copper (including 99%) was used as anode, the thin plate made of pure copper was used as cathode, and the mixture of sulfuric acid (H2SO4) and copper sulfate (CuSO4) was used as electrolyte. After being electrified, copper dissolves into copper ions (Cu) from the anode and moves to the cathode, where electrons are obtained and pure copper (also known as electrolytic copper) is precipitated. Impurities such as iron and zinc, which are more active than copper, will dissolve into ions (Zn and Fe) with copper. Because these ions are not easy to precipitate compared with copper ions, they can be avoided to precipitate on the cathode as long as the potential difference is adjusted properly. Impurities such as gold and silver, which are less active than copper, are deposited at the bottom of the cell. The copper plate produced in this way, called "electrolytic copper", is of high quality and can be used to make electrical products.
Copper is one of the earliest metals discovered and used by human beings. It is purplish red with a specific gravity of 8.89 and a melting point of 1083.4 ℃. Copper and its alloys are widely used because of their good conductivity and thermal conductivity, strong corrosion resistance, easy processing, good tensile strength and fatigue strength. They are second only to steel and aluminum in the consumption of metal materials, and become indispensable basic materials and strategic materials in the national economy and the people's livelihood, National defense engineering and even high-tech fields. It is widely used in electrical industry, mechanical industry, chemical industry, national defense industry and other sectors. Copper concentrate is a kind of low-grade copper bearing ore which can be directly used for copper smelting in smelter.
The thick plate made of crude copper (including 99%) was used as anode, the thin plate made of pure copper was used as cathode, and the mixture of sulfuric acid (H2SO4) and copper sulfate (CuSO4) was used as electrolyte. After being electrified, copper dissolves into copper ions (Cu) from the anode and moves to the cathode, where electrons are obtained and pure copper (also known as electrolytic copper) is precipitated. Impurities such as iron and zinc, which are more active than copper, will dissolve into ions (Zn and Fe) with copper. Because these ions are not easy to precipitate compared with copper ions, they can be avoided to precipitate on the cathode as long as the potential difference is adjusted properly. Impurities such as gold and silver, which are less active than copper, are deposited at the bottom of the cell. The copper plate produced in this way, called "electrolytic copper", is of high quality and can be used to make electrical products.
Copper is one of the earliest metals discovered and used by human beings. It is purplish red with a specific gravity of 8.89 and a melting point of 1083.4 ℃. Copper and its alloys are widely used because of their good conductivity and thermal conductivity, strong corrosion resistance, easy processing, good tensile strength and fatigue strength. They are second only to steel and aluminum in the consumption of metal materials, and become indispensable basic materials and strategic materials in the national economy and the people's livelihood, National defense engineering and even high-tech fields. It is widely used in electrical industry, mechanical industry, chemical industry, national defense industry and other sectors. Copper concentrate is a kind of low-grade copper bearing ore which can be directly used for copper smelting in smelter.
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