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Silicas

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PQ’s silica products consist of silica gels and precipitated silicas that are used in a wide range of applications. The Performance Chemicals business supplies silicas used in foods & beverages, surface coatings, oil processing, and personal care; these grades are covered below.

Silica gels and precipitated silicas are a form of silicon dioxide, the same compound that occurs in nature as sand. However, sand is a crystalline, non-porous form of silicon dioxide, whereas silica gels and precipitated silicas are amorphous (non-crystalline) and highly porous. By carefully controlling surface area, pore volume, particle size distribution, impurities, coatings, and other key characteristics, we can make a range of products optimized for different end uses.

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