Sigma-Aldrich 214477 Silica gel high-purity grade (Davisil Grade 923), pore size 30 Å, 100-200 mesh 250 gr
| Sigma-Aldrich 214477 Silica gel high-purity grade (Davisil Grade 923), pore size 30 Å, 100-200 mesh 250 gr |
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CAS Number: 112926-00-8
EC Number: 231-545-4
MDL number: MFCD00011232
PubChem Substance ID: 24852837
NACRES: SB.52
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PROPERTIES
grade high-purity grade (Davisil Grade 923)
Quality Level 400
form fine crystals
manufacturer/tradename Davisil®
technique(s) LPLC: suitable
matrix Silica
matrix active group silica
particle size 100-200 mesh, 75-150 μm
pore size 0.40 cm3/g pore volume, 30 Å
surface area 430-530 m2/g
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 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 lresulting 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
Application
Silica gel was used to compare MCM-41 type mesoporous adsorbents.
Packaging 50, 250 g in poly bottle 1 kg in poly bottle
Footnote Recommended Applications Grade 923 meets ASTM D1319 specifications for hydrocarbon analysis
Legal Information
Davisil is a registered trademark of W.R. Grace & Co.-Conn. |
