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Silica flour industrial minerals is a very finely divided, highly purified form of crystalline silica that consists of particles of up to 150 μm in diameter. Crystalline silica is milled to a fine powder by crushing, grinding, or ball milling to produce the flour

Silica flour is used as an abrasive additive in soaps, skin care products, toothpastes, and paints, and as a filler in construction chemicals and pharmaceuticals. It also is used in foundry work and in glass, ceramic, porcelain, tile, and clay production

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