Iridium, chemical symbol Ir, atomic number 77, is a member of the periodic table of elements. Although this metallic element is scarce in the Earth's crust, its unique physical and chemical properties make it indispensable for many applications.
Basic properties of Iridium
Iridium is a very rare precious metal with a high melting point and excellent stability. Its melting point is as high as 2450℃, which is one of the highest melting points among known metallic elements. In addition, iridium has good ductility and plasticity, and can be rolled or drawn at high temperatures. It is worth mentioning that iridium is the most corrosion resistant of all metals, it is not soluble in acids, and it is not affected by oxygen in the air.
Application range of iridium
Aerospace field: Because of its high strength, high wear resistance, high temperature resistance, Iridium is widely used in the manufacture of aircraft, rockets and other high-end equipment key components. Iridium alloys, for example, are used to make blades and fuel injectors for aircraft engines and can withstand extreme heat and pressure environments.
Electronic field: Iridium has low resistivity and good electrical conductivity, which is suitable for the manufacture of high quality electronic components. In precision components such as connectors for audio and video devices and pins for integrated circuits, Iridium can guarantee the performance and stability of electronic devices.
Medical fields: Iridium is also widely used in medical fields. For example, it can be used to make parts for medical imaging devices such as cathode ray tubes and artificial joints. In addition, iridium can also be used to prepare drugs and biological materials, contributing to the development of medical undertakings.
Chemical industry: In the chemical industry, iridium catalysts are used for the preparation of important chemical products, such as high-purity olefins and aromatic compounds, due to their high activity and selectivity. This not only improves the efficiency of chemical changes, but also improves the purity of the product.
Jewelry field: Because of its high density, high toughness and ultra-wear resistance, Iridium is also used to make high-end watch cases, fine jewelry and other jewelry.
The rarity and value of iridium
Iridium is found in very low amounts in the Earth's crust, making it a very rare metal. Although its content is scarce, iridium's value is highlighted due to its wide application and irreplaceability in various industries. Therefore, understanding and mastering the properties and applications of iridium is of great significance for us to better utilize this rare resource.
To sum up, iridium plays an important role in many fields with its unique physical and chemical properties. With the continuous development of science and technology, we believe that the scope of iridium applications will continue to expand and optimize.
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