346446
Silica gel
high-purity grade (7749), with gypsum binder and fluorescent indicator, suitable for thin layer chromatography (TLC)
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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 (7749)
Quality Level
form
powder
manufacturer/tradename
EMD Millipore®
technique(s)
LPLC: suitable
thin layer chromatography (TLC): suitable
matrix
Silica
matrix active group
silica
particle size
5-40 μm
pore size
- cm3/g pore volume
60 Å pore size
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. It is exclusively used as a support material for the active titanium(III) centers in Ziegler-Natta catalysts. Silica gel allows a controlled fragmentationresultibng 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
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.
Legal Information
EMD Millipore is a registered trademark of Merck KGaA, Darmstadt, Germany
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
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Angew. Makromol. Chem., 215, 47-57 (1994)
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