Sigma Aldrich Silica, Fumed

Catalog No. S5505500G

Supplier: Sigma Aldrich S5505500G

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 (SiO2) has been used as a precursor to synthesize: Chlorosilanes via silanization, which are used to prepare silica/polydimethylsiloxane membranes to study permeation performance. Silicon carbide (SiC) nanoparticles by sol-gel method. Calcium silicate hydrate (C-S-H) by treating with CaO and water via hydrothermal reaction. Si/PtO2 catalyst for the selective conversion of cinnamaldehyde to cinnamic acid by aerobic oxidation.It can be also used in the preparation of: Silica sulfuric acid catalyst used in the synthesis of 3,4-dihydropyrimidin-2(1H)-ones via one-pot three-component Biginelli reaction. HClO4-SiO2 heterogeneous catalyst used in the synthesis of tetrasubstituted imidazoles.Particle sizes are for primary particles, which form branched, chain-like aggregates a few tenths of a micron long.

Specifications

• CAS: 82436-77-9
• Molecular Formula: C16H18N2Na2O14S2
• Linear Formula: C16H18N2Na2O14S2
• Refractive Index: n20/D 1.46
• MDL Number: MFCD00054982
• Quantity: 100 mg
• Synonym: Silica; Silicic anhydride; Silicon dioxide; Silicon dioxide amorphous
• Molecular Weight (g/mol): 572.43 g/mol