Sigma Aldrich Silica, fumed

Catalog No.	Quantity
50-312-6118	25 g
50-312-6117	100 g
50-312-5936	500 g

Catalog No. 50-312-6118 Supplier Sigma Aldrich Supplier No. S513025G

Description

MilliporeSigma Sigma Organics products encompass a wide range of quality reagents, solvents, catalysts, and building blocks for organic synthesis. From benchtop discovery to process development and scale-up, Sigma Organics solutions are built to meet the needs of synthetic chemists.

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.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.Particle sizes are for primary particles, which form branched, chain-like aggregates a few tenths of a micron long.

Specifications

• CAS: 112945-52-5
• Quantity: 25 g
• Molecular Formula: O2Si
• Linear Formula: SiO2
• MDL Number: MFCD00011232
• Synonym: Silica; Silicic anhydride; Silicon dioxide; Silicon dioxide amorphous
• Molecular Weight (g/mol): 60.08
• Refractive Index: n20/D 1.46 (literature)
• Density: 2.3 lb./cuft (at 25°C (bulk density)(literature))