236772

Kieselgel

high-purity grade (Davisil Grade 633), pore size 60 Å, 200-425 mesh particle size

• CAS-Nummer: 112926-00-8
• EG-Nummer: 231-545-4
• MDL-Nummer: MFCD00011232
• UNSPSC-Code: 23201100
• PubChem Substanz-ID: 24854187
• NACRES: SB.52

Eigenschaften

• Qualität: high-purity grade (Davisil Grade 633)
• Qualitätsniveau: 100
• Assay: ≥99%
• Form: powder
• Hersteller/Markenname: Davisil^®
• Methode(n): LPLC: suitable
• Oberflächenbereich: 480 m²/g
• Matrix: Silica
• Aktive Matrixgruppe: silica
• Partikelgröße: 200-425 mesh; 35-75 μm
• Porengröße: 0.75 cm³/g pore volume; 60 Å
• pH-Wert: 6.5 (5% in slurry)
• 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 resulting in the formation of 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 was used to compare MCM-41 type mesoporous adsorbents.

Rechtliche Hinweise

Davisil is a registered trademark of W.R. Grace & Co.-Conn.

Sicherheitshinweise

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