12479

Silica gel

technical grade (w/ Ca, ~0.1%), 60Å, 230-400 mesh particle size, Ca 0.1-0.3 %

• CAS Number: 112926-00-8
• EC Number: 231-545-4
• MDL number: MFCD00011232
• PubChem Substance ID: 329749743
• NACRES: SB.52

Properties

• Quality Level: 100
• grade: technical grade (w/ Ca, ~0.1%)
• description: activity acc. to Brockmann and Schodder 2 - 3; for preparative liquid chromatography
• form: powder
• composition: Ca, 0.1-0.3%
• manufacturer/tradename: Sigma-Aldrich
• technique(s): LPLC: suitable
• matrix: Silica
• matrix active group: silica
• particle size: 230-400 mesh; 40-63 μm
• pore size: 60 Å mean pore size
• surface area: 500 m²/g (approx.)
• bp: 2230 °C
• mp: >1600 °C
• separation technique: hydrophilic interaction (HILIC)
• SMILES string: O=[Si]=O
• InChI: 1S/O2Si/c1-3-2
• InChI key: VYPSYNLAJGMNEJ-UHFFFAOYSA-N

Description

General description

Silica gel, highly porous textured matrix are generally used for synthesis of adsorbents. They are corpuscular in structure. Silica surface possess a layer of hydroxyl groups and adsorbed water molecules, which can be removed by drying at high temperature or even by treatment with suitable reagents. Silica gel surface plays important role in catalysis, chemical separation and microelectronic fabrications.

Application

• Silica gel was used on glass plates for preparative TLC and on aluminium sheets for analytical TLC.
• Silica gel was used in vacuum chromatography and TLC.
• Silica gel was used in column chromatography.

Analysis Note

May contain insoluble matter and traces of process residues. Should be washed with solvent prior to use.

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: nwg
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves