The silica particles are irregular in shape and would not be considered spherical throughout.
288500
Silica gel
high-purity grade, pore size 60 Å, 2-22 μm particle size distribution, without binder, suitable for thin layer chromatography (TLC)
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| Size/SKU | Availability | Price |
|---|---|---|
1 kg | Check Cart for Availability | $244.00 |
About This Item
CAS Number:
NACRES:
NC.07
PubChem Substance ID:
UNSPSC Code:
41115711
EC Number:
231-545-4
MDL number:
$244.00
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grade
high-purity grade
Quality Segment
form
powder
manufacturer/tradename
Sigma-Aldrich
technique(s)
thin layer chromatography (TLC): suitable
surface area
~500 m2/g
impurities
≤0.01% Fe3+
particle size distribution
2-22 μm
pore size
60 Å pore size
pH
~6.8 (10% in aq. suspension)
bp
2230 °C
mp
>1600 °C
anion traces
chloride (Cl-): ≤0.01%
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. It 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
1 of 1
This Item | |||
|---|---|---|---|
| description high-purity grade, pore size 60 Å, 2-22 μm particle size distribution, without binder, suitable for thin layer chromatography (TLC) | description high-purity grade (Davisil Grade 636), pore size 60 Å, 35-60 mesh particle size | description high-purity grade, 60Å, 35-60 mesh particle size | description high-purity grade, suitable for column chromatography, 90Å, 15-25 μm |
| technique(s) thin layer chromatography (TLC): suitable | technique(s) LPLC: suitable | technique(s) LPLC: suitable | technique(s) LPLC: suitable |
| pore size 60 Å pore size | pore size 0.75 cm3/g pore volume, 60 Å | pore size 0.8 cm3/g pore volume | pore size 90 Å mean pore size |
| anion traces chloride (Cl-): ≤0.01% | anion traces - | anion traces - | anion traces - |
| pH ~6.8 (10% in aq. suspension) | pH 6.5 (5% in slurry) | pH - | pH - |
| grade high-purity grade | grade high-purity grade (Davisil Grade 636) | grade high-purity grade | grade high-purity grade |
| manufacturer/tradename Sigma-Aldrich | manufacturer/tradename Davisil® | manufacturer/tradename Sigma-Aldrich | manufacturer/tradename - |
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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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