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What are graphite rods used for in electrolysis?
Graphite rods are commonly used as electrodes in electrolysis processes. Electrolysis is a technique that uses an electric current to drive a non-spontaneous chemical reaction. The electrodes, which conduct electricity to the electrolyte solution, play a crucial role in this process. Graphite rods are preferred for several reasons:

Conductivity: Graphite is an excellent conductor of electricity. It allows the electric current to flow through the electrolyte, facilitating the movement of ions and the occurrence of electrolysis.

Chemical Stability: Graphite is chemically stable and does not react with many substances. This is important because electrodes should not undergo chemical reactions that could interfere with the desired electrolysis process.

High Melting Point: Graphite has a high melting point, which makes it suitable for use in high-temperature electrolysis processes.

Mechanical Strength: Graphite is mechanically strong, providing durability and resistance to wear and tear during electrolysis.

Availability: Graphite is readily available and relatively inexpensive, making it a practical choice for electrodes in various electrolysis applications.

graphite rods

In electrolysis, the positive electrode is called the anode, and the negative electrode is called the cathode. Depending on the specific electrolysis process, different reactions occur at the electrodes. For example, in the electrolysis of water, when a direct current is passed through water, hydrogen gas is produced at the cathode (negative electrode), and oxygen gas is produced at the anode (positive electrode). The use of graphite rods ensures efficient and reliable performance in such processes.

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