403563
Silica gel
high-purity grade (10180), pore size 40 Å, 70-230 mesh particle size
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About This Item
CAS Number:
EC Number:
MDL number:
UNSPSC Code:
12352309
PubChem Substance ID:
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grade
high-purity grade (10180)
form
powder
manufacturer/tradename
EMD Millipore®
technique(s)
LPLC: suitable
surface area
750 m2/g
matrix
Silica
particle size
63-200 μm
70-230 mesh
pore size
~0.68 cm3/g pore volume
40 Å
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
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General description
Silica gel is a rigid 3D network of colloidal silica.[1] 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.[2] 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[1]
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[1]
Application
Silica gel was used to compare MCM-41 type mesoporous adsorbents.[3]
Features and Benefits
Small pore size and high surface area provide maximum capacity for small molecules
Legal Information
EMD Millipore is a registered trademark of Merck KGaA, Darmstadt, Germany
Storage Class
11 - Combustible Solids
wgk_germany
nwg
flash_point_f
Not applicable
flash_point_c
Not applicable
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T Martin et al.
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Silica gel supported zirconocene dichloride/methylalumoxane catalysts for ethylene polymerization: Effects of heterogenation on activity, polymer microstructure and product morphology.
Janiak, Christoph, and Bernhard Rieger.
Angew. Makromol. Chem., 215, 47-57 (1994)
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