The silica particles are irregular in shape and would not be considered spherical throughout.
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288500
Kieselgel
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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| Packungsgröße | SKU | Verfügbarkeit | Preis |
|---|---|---|---|
| 1 kg | Warenkorb auf Verfügbarkeit prüfen | € 167,00 |
Über diesen Artikel
CAS-Nummer:
NACRES:
NC.07
PubChem Substance ID:
UNSPSC Code:
41115711
EC Number:
231-545-4
MDL number:
Technischer Dienst
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Unterstützung erhaltengrade
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
Application
Silica gel was used on glass plates to perform preparative thin layer chromatography.[1]
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Dieser Artikel | |||
|---|---|---|---|
| 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 0.7-0.85 cm3/g pore volume, 60 Å average pore size (52-73 Å) | pore size 0.8 cm3/g pore volume, 60 Å | pore size 0.8 cm3/g pore volume, 60 Å |
| pH ~6.8 (10% in aq. suspension) | pH - | pH - | pH - |
| grade high-purity grade | grade high-purity grade | grade high-purity grade | grade high-purity grade |
| bp 2230 °C | bp 2230 °C | bp 2230 °C | bp 2230 °C |
| impurities ≤0.01% Fe3+ | impurities - | impurities 3-7% water | impurities - |
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Lagerklasse
11 - Combustible Solids
wgk
nwg
flash_point_f
Not applicable
flash_point_c
Not applicable
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F. Daayf et al.
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Phenolic compounds extracted from cucumber (Cucumis sativus L.) leaves were separated and analyzed for their differential presence and fungitoxicity in relation to a prophylactic treatment with Milsana (Compo, Munster, Germany) against powdery mildew (Sphaerotheca fuliginea). Based on our extraction and
A simple method for production of pure silica from rice hull ash
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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)
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 288500-1KG | 04061838512932 |
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