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Germany, the United States, and China are the leading exporters of fumed silica, collectively accounting for over 50% of global export value in recent years; major importers include South Korea, India, and Mexico, driven by demand from silicone rubber, coatings, and pharmaceutical sectors. Import volumes to Southeast Asia and India have risen steadily since 2022, coinciding with moderate upward pressure on fumed silica prices amid tightening supply from key European producers.
Fumed silica is a white, amorphous, fine particulate solid with no odor and negligible volatility; it is non-melting and thermally stable up to approximately 1,600 °C. It is an inorganic oxide—specifically, a synthetic form of silicon dioxide (SiO₂)—produced via flame hydrolysis of silicon tetrachloride. Fumed silica is primarily used as a rheology modifier, thickener, anti-caking agent, and reinforcing filler across diverse industrial applications. It is widely employed in high-performance coatings, adhesives and sealants, silicone elastomers, pharmaceutical formulations, and food-grade products. Its functionality stems from its high surface area, nanoscale primary particle size, and surface chemistry, which enable effective network formation in liquid and semi-solid systems.
Amorphous silica, the noncrystalline form of SiO2, is a transparent to gray, odorless, amorphous powder
This chemical is included in Basic Chemicals. See more about what is Fumed Silica and Fumed Silica SDS information.
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