288608

Kieselgel

high-purity grade, pore size 60 Å, 130-270 mesh, for column chromatography

• CAS-Nummer: 112926-00-8
• EG-Nummer: 231-545-4
• MDL-Nummer: MFCD00011232
• UNSPSC-Code: 12352309
• PubChem Substanz-ID: 24857353

Eigenschaften

• Qualität: for column chromatography; high-purity grade
• Qualitätsniveau: 100
• Form: powder
• Methode(n): LPLC: suitable
• Oberflächenbereich: ~500 m²/g
• Matrix: Silica
• Aktive Matrixgruppe: silica
• Partikelgröße: 130-270 mesh
• Porengröße: 0.75 cm³/g pore volume; 60 Å
• bp: 2230 °C
• mp (Schmelzpunkt): >1600 °C
• Trenntechnik: hydrophilic interaction (HILIC)
• SMILES String: O=[Si]=O
• InChI: 1S/O2Si/c1-3-2
• InChIKey: VYPSYNLAJGMNEJ-UHFFFAOYSA-N

Beschreibung

Allgemeine Beschreibung

Silica gel is a rigid 3D network of colloidal silica. It is exclusively used as a support material for the active titanium(III) centers in Ziegler-Natta catalysts. Silica gel allows a controlled fragmentation leading to form uniform polymer particles with narrow particle size distribution and high bulk density. Silica gel is classified as below:
a. Aquagel - pores are filled with water
b. Xerogel - by the process of evaporation, aqueous phase in the pores are removed
c. Aerogel - solvent removed by supercritical extraction

Anwendung

Silica gel has been used as a column material in the preparation of nanoscale iron oxide−based materials to be used in the catalysis of different hydrogenation reactions, which is monitored using gas chromatography (GC) technique.

Silica gel was used to compare MCM-41 type mesoporous adsorbents.

Sicherheitshinweise

• Lagerklassenschlüssel: 11 - Combustible Solids
• WGK: nwg
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable