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Microand nanosilica (μ/n-SiO 2) Silica fume, also known as microsilica, is an amorphous polymorph of silicon dioxide, silica. It is a by-product of the carbothermic reduction of high purity quartz in electric arc furnaces in the production of silicon and ferrosilicon alloys.
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Polysciences offers uniform, non-porous silica (SiO 2) microspheres available in nominal diameters of ~150nm -5µm. These particles typically have size CVs of 10-15%. Supplied in aqueous suspension of 10% solids.
Valued for its inertness, purity, acid resistance, UV resistance, scrub resistance, weathering properties and hardness (moh 7), Microsil® is used in a range of industries including coatings, varnishes and cured products, ceramics, tile adhesives, plastics and rubber compounding.
4 Νοε 2016 · Crystalline silica is considered as one of the most common and serious occupational hazards to workers’ health. Although its association with lung cancer has been studied for many decades, the conclusion remains somewhat controversial.
