391484

Silica gel Inorganic Sorbent

high-purity grade (7734), 70-230 mesh

• CAS-Nummer: 112926-00-8
• EG-Nummer: 231-545-4
• MDL-Nummer: MFCD00011232
• UNSPSC-Code: 12352309
• PubChem Substanz-ID: 24864382
• NACRES: SB.52

Eigenschaften

• product name: Kieselgel, high-purity grade (7734), pore size 60 Å, 70-230 mesh
• Qualität: high-purity grade (7734)
• Qualitätsniveau: 100
• Form: powder
• Hersteller/Markenname: EMD Millipore^®
• Methode(n): LPLC: suitable
• Oberflächenbereich: 550 m²/g
• Matrix: Silica
• Aktive Matrixgruppe: silica
• Partikelgröße: 63-200 μm; 70-230 mesh
• Porengröße: ~0.8 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 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 as an adsorbent to separate compounds by chromatography. It was used to compare MCM-41 type mesoporous adsorbents.
It may be used in the synthesis of the following:

• Silica gel-immobilized-dithioacetal derivatives.
• Piperazino silica reagent for removing 9-fluorenylmethyloxycarbonyl amino protecting group.
• Polysiloxanes silica hybrids.

Rechtliche Hinweise

EMD Millipore is a registered trademark of Merck KGaA, Darmstadt, Germany

Sicherheitshinweise

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