The silica particles are irregular in shape and would not be considered spherical throughout.
288500
Gel de sílice
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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1 KG
$232.00
$232.00
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Número CAS:
NACRES:
NC.07
PubChem Substance ID:
UNSPSC Code:
41115711
EC Number:
231-545-4
MDL number:
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Servicio técnico
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Permítanos ayudarleInChI key
VYPSYNLAJGMNEJ-UHFFFAOYSA-N
InChI
1S/O2Si/c1-3-2
SMILES string
O=[Si]=O
grade
high-purity grade
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%
Quality Level
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Este artículo | 60741 | 288519 | 60737 |
|---|---|---|---|
| technique(s) thin layer chromatography (TLC): suitable | technique(s) LPLC: suitable | technique(s) thin layer chromatography (TLC): suitable | technique(s) LPLC: suitable |
| pore size 60 Å pore size | pore size 0.7-0.85 cm3/g pore volume, 60 Å average pore size (52-73 Å) | pore size 0.75 cm3/g pore volume, 60 Å medium pore diameter, 60 Å pore size | pore size 0.8 cm3/g pore volume, 60 Å |
| grade high-purity grade | grade high-purity grade | grade high-purity grade | grade high-purity grade |
| form powder | form powder or crystals | form powder | form powder |
| manufacturer/tradename Sigma-Aldrich | manufacturer/tradename Sigma-Aldrich | manufacturer/tradename Sigma-Aldrich | manufacturer/tradename Sigma-Aldrich |
| surface area ~500 m2/g | surface area 470-530 m2/g | surface area ~500 m2/g | surface area 530 m2/g |
Application
Silica gel was used on glass plates to perform preparative thin layer chromatography.[1]
General description
Silica gel is a rigid 3D network of colloidal silica.[2] 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.[3] 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[2]
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[2]
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Referencia del producto
Descripción
Precios
Clase de almacenamiento
11 - Combustible Solids
wgk
nwg
flash_point_f
Not applicable
flash_point_c
Not applicable
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