S5130
Silica, fumed
powder
Sinonimo/i:
Silica, Silicic anhydride, Silicon dioxide, Silicon dioxide amorphous
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About This Item
Formula condensata:
SiO2
Numero CAS:
Peso molecolare:
60.08
Numero MDL:
Codice UNSPSC:
12352300
ID PubChem:
NACRES:
NA.23
Prodotti consigliati
Forma fisica
powder
Livello qualitativo
Area superficiale
395 m2/g (±25 m2/g)
Indice di rifrazione
n20/D 1.46 (lit.)
Densità
2.3 lb/cu.ft at 25 °C (bulk density)(lit.)
Stringa SMILE
O=[Si]=O
InChI
1S/O2Si/c1-3-2
VYPSYNLAJGMNEJ-UHFFFAOYSA-N
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Descrizione generale
Fumed silica may be synthesized by high temperature hydrolysis of SiCl4 in O2(N2)/H2 flame. It is amorphous in nature and possesses very high specific area. The micro droplets of amorphous silica fuse into a branch and form a chain like agglomerate.
Applicazioni
Fumed silica is used to deplete lipids and hormones in Taqman assays of human hepatoma cells HuH-7 and human liver cell line HepG2. Preparation of epoxidized natural rubber/fumed silica composites have been reported. Interaction of Gemini surfactant C12-s-C122Br with aqueous suspension of fumed silica has been studied. Fumed silica based nanocomposites reinforced with organo clay may be prepared. TiO2/fumed silica porous ceramic material was used to prepare photocatalytic materials.
Caratteristiche e vantaggi
Has interesting thickening and thixotropic properties, and an enormous external surface area.
Altre note
Particle sizes are for primary particles, which form branched, chain-like aggregates a few tenths of a micron long.
Codice della classe di stoccaggio
11 - Combustible Solids
Classe di pericolosità dell'acqua (WGK)
WGK 2
Punto d’infiammabilità (°F)
Not applicable
Punto d’infiammabilità (°C)
Not applicable
Dispositivi di protezione individuale
Eyeshields, Gloves, type N95 (US)
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Interaction Between Fumed-Silica and Epoxidized Natural Rubber
Luo YY, et al.
Journal of Inorganic and Organometallic Polymers and Materials, 21(4), 777-783 (2011)
Zheng O, et al.
Energy Procedia, 16 Part B, 1211-1219 (2012)
Melt rheology of organoclay and fumed silica nanocomposites
Ph. Cassagnau
Polymer, 49(9), 2183-2196 (2008)
Preparation and properties of TiO2/fumed silica composite photocatalytic materials
Yu Y, et al.
Procedia Engineering, 27, 448-456 (2012)
Petra Thulin et al.
International journal of molecular medicine, 21(6), 819-824 (2008-05-29)
The peroxisome proliferator-activated receptor delta (PPARdelta) is a transcription factor that regulates genes of importance in lipid and glucose metabolism. ApoA-II is one of the major proteins of the HDL-particle. The aim of this study was to investigate the regulation
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