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[Chemical Knowledge]：Properties, uses, upstream and downstream raw materials, storage methods, common uses of iron oxide

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Iron oxide properties

Iron oxide is an important inorganic compound with the chemical formula Fe₂ O₂. It exists mainly in the form of a reddish-brown powder and is the product of the reaction of iron and oxygen. Iron oxide has a density of about 5.24g/cm³ and a melting point of 1565 ℃. It is difficult to dissolve in water, but it is soluble in acid. Iron oxide has magnetic properties, especially α-Fe-O2 in the form of hematite, which is antiferromagnetic. It also has excellent high temperature and corrosion resistance, which makes it important in many industrial applications.

Iron oxide uses

Iron oxide is widely used and covers many fields. Iron oxide is widely used in the pigment industry to make red, brown and black pigments. Because of its bright and stable color, it is widely used in paints, coatings, inks and plastics. In the metallurgical industry, iron oxide is an important raw material for steelmaking and ironmaking. It is also used as a polishing agent, especially in jewelry and metal surface treatment processes. Iron oxide is used in the electronics industry as a magnetic material, making magnetic tapes and magnetic recording materials. The pharmaceutical and cosmetic industries also take advantage of the non-toxic properties of iron oxide as a pigment additive.

Iron oxide upstream raw material

The production of iron oxide mainly depends on raw materials such as iron ore and scrap iron. Iron ore is rich in iron, and iron oxide can be extracted by roasting or hydrometallurgical methods. Scrap iron is obtained by recycling and processing waste metal products, after high temperature oxidation can generate iron oxide. Part of the chemical industry by-products such as ferric chloride, ferrous sulfate can also be produced by oxidation of iron oxide. Water and oxygen are the basic raw materials in the oxidation process, ensuring the formation of iron oxide.

Iron oxide downstream products

The downstream products of iron oxide are rich and diverse. As a pigment, iron oxide is widely used in coatings, paints and plastic products to meet the color needs of different industries. In metallurgy, iron oxide is reduced to iron for further use in steel production. In the electronics industry, iron oxide is processed into magnetic materials, used in computer disks and audio and video tapes. The pharmaceutical and cosmetic industries use the pigment properties of iron oxide to produce a variety of safe and non-toxic pigment products. Iron oxide is also used as catalyst and catalyst carrier, widely used in chemical synthesis and environmental protection.

Iron oxide storage method

The storage of iron oxide requires attention to moisture, pollution and fire prevention. Iron oxide should be stored in a dry and ventilated warehouse to avoid moisture and agglomeration, affecting its performance. The storage environment should be kept clean to prevent impurities from mixing and ensure the purity of iron oxide. Although iron oxide is not a flammable substance, it may react under high temperature conditions, so it should be kept away from fire and high temperature areas. The packaging of iron oxide should be made of moisture-proof and anti-corrosion materials, such as plastic bags, sealed barrels, etc., to extend its storage period.

Conclusion

As an important inorganic compound, iron oxide has a variety of excellent physical and chemical properties, making it widely used in many industries, such as pigments, metallurgy, electronics, medicine and cosmetics. Its upstream raw materials mainly include iron ore and scrap iron, while its downstream products cover various forms such as coatings, steel, magnetic materials and pigments. A reasonable storage method is the key to ensure the quality and performance of iron oxide, and attention should be paid to moisture-proof, pollution-proof and fire-proof. With the development of science and technology and industry, the application prospect of iron oxide will be broader, providing more development opportunities for related industries.

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