112926-00-8

CAS Nr.:

112926-00-8

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EINECS Name:

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EINECS Nr.:

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Silicon dioxide

Synonym:

Silicon dioxide

Silica, also known by the CAS number 112926-00-8, is a versatile chemical raw material that finds use in numerous industrial applications. This fine, white solid has specific physical properties that make it particularly valuable for various industries.

Physical Properties of Silica

Silica is an amorphous, fine-grained material primarily composed of silicon dioxide (SiO₂). It has a very high specific surface area, often ranging from 100 to 400 m²/g. This high surface area makes silica particularly suitable for applications where a large contact area is beneficial. The melting point of silica is around 1600°C, and it is insoluble in water, making it a stable material under various environmental conditions.

Applications of Silica

Silica is frequently used as a filler in the plastics and rubber industry. Its fine particle size and high surface area enhance the mechanical properties of plastics and rubber by increasing the strength and durability of the final products. Especially in tire manufacturing, silica helps reduce rolling resistance and improve fuel efficiency.

In the paint and coatings industry, silica serves as a thickening and flow agent. It stabilizes the viscosity of paints and prevents pigment settling, resulting in uniform paint coverage and improved product shelf life. In the cosmetics industry, silica is also used as a thickening agent in creams and lotions.

The fine particles of silica are excellent anti-caking and free-flow agents in the food industry. They prevent clumping in powders and ensure even distribution of ingredients in products such as spices, baking powder, and instant beverages. This improves the handling and dosing of these products.

In the chemical industry, silica is used as a carrier substance for catalysts. Its high specific surface area provides an optimal platform for the distribution of catalyst particles, enhancing the efficiency of chemical reactions. This is particularly important in petrochemicals and the production of fine chemicals.

In summary, due to its unique physical properties and versatility, silica plays a crucial role in various industrial applications. Its ability to improve mechanical properties, provide stability, and serve as a carrier substance makes it an indispensable raw material in many fields.