236799
Silica gel Inorganic Sorbent
high-purity grade (Davisil Grade 635), 60-100 mesh
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About This Item
CAS Number:
UNSPSC Code:
12352309
PubChem Substance ID:
NACRES:
NB.21
EC Number:
231-545-4
MDL number:
Product Name
Silica gel, high-purity grade (Davisil Grade 635), pore size 60 Å, 60-100 mesh
grade
high-purity grade (Davisil Grade 635)
Quality Segment
assay
≥99%
form
powder or granules
manufacturer/tradename
Davisil®
technique(s)
LPLC: suitable
surface area
480 m2/g
matrix
Silica
matrix active group
silica
particle size
150-250 μm, 60-100 mesh
pore size
0.75 cm3/g pore volume, 60 Å
pH
6.5 (5% in slurry)
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
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 resulting 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
Legal Information
Davisil is a registered trademark of W.R. Grace & Co.-Conn.
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Storage Class
11 - Combustible Solids
WGK
nwg
Flash Point (°F)
Not applicable
Flash Point (°C)
Not applicable
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