The benefits of fumed silica and silica fume in the manufacturing and construction industries are well known. While the two terms seem similar, the products have apparent differences. Unfortunately, most people use the terms interchangeably. Here is ...…
What is Fumed Silica?Fumed Silica is a form of silicon dioxide, or silicon, with the molecular formula SiO2 and a molecular weight of 60.0843 g/mol. Fumed silica is also known as pyrogenic silica. It is an odorless white powder consisting of droplets...…
The Aerosil® 200 silica used by the invention, with a BET surface area, differs from the known Aerosil® 300, which has a surface area of 300 m2/g, not only in the surface size but also in the average primary particle size. The Aerosil® 300 has an ave...…
The prior art can only prevent deagglomeration if the hydrophilic silica is mixed with 3% by weight of hydrophobic silica and if this mixture is ground utilizing an air-jet mill or a pinned-disc mill (EP 0 076 377 B1). In this case, for a fumed silic...…
A known procedure is to render fumed silica hydrophobic, grind it in a pinned-disc mill, and then classify it (U.S. 2004/0110077 A1). This known silica is used as an external additive in toner mixtures. Reducing the agglomerate size by dispersing out...…
The primary particles and aggregates of a fumed silica agglomerate form larger assemblies whose size is generally in inverse proportion to the primary particle size or proportion to the specific surface area. The agglomerate size also increases with ...…
Fumed silica having a BET surface area of 200±15 m2/g, a goniometer value of less than 30 μm, and a median value by PCS of 65 to 85 nm are prepared by grinding a fumed silica having a surface area of 200±25 m2/g, and silicone rubber containing this s...…
What is Fumed silica?Fumed silica (pyrogenic silica and silicon dioxide) is one of the lightest substances known. Fumed silicas are very light and fluffy and have bulk densities of 3 lbs/cu ft (38 kg/cu m). Silicon metals and alloys are produced in e...…
The water glass typically used in industry is synthesized using sodium and potassium silicate. In our experiment, as the selective adsorption of the strongly acidic cation exchange resin is greater when the valence of the ion is larger, the water gla...…
Fumed silica-based ultra-high-purity synthetic quartz powder was developed via the sol–gel process to apply to quartz wares and quartz crucibles for use in advanced semiconductor processes. The process conditions of preparing potassium silicate solut...…
Hollow glass powder (HGM), mainly composed of borosilicate glass, is an important inorganic filler with low density, high-temperature resistance, good fluidity, heat insulation, and good thermal stability. Through surface modification, HGB is applied...…
Quartz is a crystalline silicon dioxide mineral, also called Crystalline Silica. Quartz is the most abundant mineral on the Earth's surface and the second most abundant mineral in the Earth's crust. Beach and desert sand is primarily composed of quar...…
What's silicon nitride? Silicon nitride can be described as an inorganic material with chemical formula Si3N4. It's a structural ceramic material that is important for its high hardness, intrinsic lubricity and wear resistance. It is an atomic cry...…
What is Molybdenum disilicide?Molybdenum disilicide (MoSi2, or molybdenum silicide), an intermetallic compound, a silicide of molybdenum, is a refractory ceramic with primary use in heating elements. It has moderate density, a melting point of 2030 °...…
Made from pure molybdenum, this crucible has a 99.95% purity. About Metal Alloy 99.95% purity Molybdenum crucible High Heat Resistance: Chemistry: Many applications: Used in metalurgical, machine, petroleum, chemical and electronic indust...…
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