7440-36-0

CAS Nr.:

7440-36-0

Antimon

EINECS Name:

Antimon

231-146-5

EINECS Nr.:

231-146-5

Antimon metal

Synonym:

Antimon metal

Antimony – Strategic Raw Material for Industry, Electronics, and Flame Retardants. Antimony is a silvery, shiny metalloid and is considered one of the important industrial raw materials in the modern materials and chemical industries. Due to its unique physical and chemical properties, antimony is used in numerous sectors, including the plastics industry, metallurgy, electronics, and the production of flame retardants. Especially when combined with other elements, antimony exhibits versatile properties and contributes to improving the performance of many materials.

Physical Properties of Antimony

Antimony is a brittle, crystalline metalloid with a metallic luster. It has a molar mass of 121.76 g/mol and a density of approximately 6.68 g/cm³. Its melting point is around 630.6 °C, while the boiling point is about 1,587 °C. Antimony is characterized by relatively low electrical and thermal conductivity but has high chemical stability when exposed to air and many chemical compounds. In alloys, antimony can significantly increase the hardness and strength of metals, making it valuable for numerous technical applications.

Examples of Applications of Antimony

One of the most important applications of antimony is the production of antimony trioxide (Sb₂O₃), which is used as a flame retardant additive in plastics, textiles, and electronic components. In combination with halogenated compounds, it improves the fire resistance of materials and contributes to increased safety in construction, electronics, and automotive applications.

Antimony is commonly used as an alloying element in metals such as lead, tin, or copper. The addition of antimony increases the hardness, mechanical stability, and wear resistance of these alloys. Such materials are used, for example, in batteries, bearings, cable sheathing, and technical components.

In the electronics industry, antimony is used as a doping element in semiconductors. It improves the electrical properties of certain materials and is applied in diodes, infrared sensors, and other electronic components.

Antimony compounds are also used in glass manufacturing, for example as refining agents to remove gas bubbles from molten glass. This process helps produce particularly clear and high-quality glass products that are used in optics, packaging, and construction industries.

Antimony is a versatile and strategically important raw material for numerous industrial applications. Its unique physical properties make it an indispensable material in the plastics industry, metallurgy, electronics, and glass manufacturing. With the increasing demand for high-performance materials and safe products, the importance of antimony will continue to grow in the future.