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Fumed silica is made from flame pyrolysis of silicon tetrachloride or from quartz sand vaporized in a 3000 °C electric arc. [3] Major global producers are Evonik (who sells it under the name Aerosil), Cabot Corporation (Cab-O-Sil), Wacker Chemie (HDK), Dow Corning, Heraeus (Zandosil), Tokuyama Corporation (Reolosil), OCI (Konasil), Orisil (Orisil) and Xunyuchem(XYSIL).
CAB-O-SIL DURAMOLD 2150 fumed silica provides excellent transparency performance due to its unique particle characteristics and the high purity level of Cabot's silica. This is specifically useful ...
Silica fume, also known as microsilica, (CAS number 69012-64-2, EINECS number 273-761-1) is an amorphous (non-crystalline) polymorph of silicon dioxide, silica. It is an ultrafine powder collected as a by-product of the silicon and ferrosilicon alloy production and consists of spherical particles with an average particle diameter of 150 nm.
Manufactured fumed silica with maximum surface area of 380 m 2 /g. Silica fume is an ultrafine powder collected as a by-product of the silicon and ferrosilicon alloy production. It consists of amorphous (non-crystalline) spherical particles with an average particle diameter of 150 nm, without the branching of the pyrogenic product.
Hydrophobic silica can be used to treat other surfaces to become hydrophobic, this is due to the morphology of the silica particles once they adhere to their host. The silica particles then alter the surface of its host material resulting in a hydrophobic surface. Aggregated fumed silica can be applied to large surfaces to render them ...
OCI Company Ltd. (OCI; Korean: 오씨아이 주식회사) is a chemical company founded in 1959, with its head office in Seoul, South Korea.The company's name is an initialism of its former corporate name, Oriental Chemical Industries (Korean: 동양화학공업; Hanja: 東洋化學工業; RR: Dongyang Hwahak Gongeop).