78991

Silica gel spherical

75-200 μm particle size

• Synonym(s): Silica gel
• CAS Number: 112926-00-8
• EC Number: 231-545-4
• MDL number: MFCD00011232
• UNSPSC Code: 23201100
• PubChem Substance ID: 329768201
• NACRES: SB.52

Properties

• grade: high-purity grade
• Quality Level: 100
• form: powder
• manufacturer/tradename: Sigma-Aldrich
• technique(s): LPLC: suitable
• surface area: 250-350 m²/g
• loss: ~5% loss on drying
• matrix: Silica
• matrix active group: silica
• particle size: 75-200 μm
• pore size: 0.7-0.9 cm³/g pore volume; 110 Å pore size
• pH: ~7 (5% in H₂O, suspension)
• 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

High purity grade silica gel offers the lowest moisture content, tightest particle size distribution, minimal impurities and greatest lot-to-lot consistency which results in greater reproducibility of the separation process. It is useful for all types of low pressure, medium pressure, and flash column chromatography. It can be applied to the clean-up and purification of a wide range of synthetic and natural compounds. A spherical particle shape results in more homogenous packing characteristics, providing sharper peak adsorption and elution curve.

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: nwg
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable