AEROSIL-200, also known as fumed silica, is a high-purity colloidal silicon dioxide with the chemical formula SiO2. It appears as a fluffy white powder and is known for its extremely low bulk density and high surface area. AEROSIL-200 is widely used in various industries for its thickening, thixotropic, and anti-caking properties, making it an essential additive in paints, coatings, adhesives, sealants, and pharmaceuticals.
Applications:
- Paints and Coatings: AEROSIL-200 is used as a rheology modifier and anti-settling agent in paints and coatings, improving viscosity and stability.
- Adhesives and Sealants: It acts as a thickening and thixotropic agent, enhancing the performance and application properties of adhesives and sealants.
- Pharmaceuticals: In the pharmaceutical industry, AEROSIL-200 is used as a glidant and anti-caking agent, improving the flow properties of powders and granules.
- Cosmetics: It is used in cosmetic formulations to provide a smooth texture and improve product stability.
- Food Industry: AEROSIL-200 is used as an anti-caking agent in powdered food products, preventing clumping and ensuring free-flowing properties.
- Plastics and Rubber: It is added to plastics and rubber to improve mechanical properties and processability.
- Silicone Rubber: It is used as a reinforcing filler in silicone rubber, enhancing its strength and durability.
Safety and Handling:
AEROSIL-200 should be handled with care to avoid inhalation of dust, which can cause respiratory irritation. Proper personal protective equipment (PPE) such as masks, gloves, and goggles should be worn when handling this material. It should be stored in a cool, dry place, away from moisture and incompatible substances. Adequate ventilation is essential to minimize dust exposure.
Environmental Impact:
AEROSIL-200 has a low environmental impact when used and disposed of properly. It is considered inert and non-toxic, but care should be taken to prevent excessive release into the environment. Disposal should be conducted in accordance with local environmental regulations.
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