The silica particles are irregular in shape and would not be considered spherical throughout.
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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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| Gabaryty przesyłki | SKU | Dostępność | Cena netto |
|---|---|---|---|
| 1 kg | Skontaktuj się z Obsługą Klienta, aby uzyskać informacje na temat dostępności | 896,00 zł |
Informacje o tej pozycji
Numer CAS:
NACRES:
NC.07
PubChem Substance ID:
UNSPSC Code:
41115711
EC Number:
231-545-4
MDL number:
896,00 zł
Skontaktuj się z Obsługą Klienta, aby uzyskać informacje na temat dostępności
Pomoc techniczna
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Pozwól nam pomócgrade
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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Ta pozycja | |||
|---|---|---|---|
| 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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Klasa składowania
11 - Combustible Solids
wgk
nwg
flash_point_f
Not applicable
flash_point_c
Not applicable
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Numer pozycji handlu globalnego
| SKU | NUMER GTIN |
|---|---|
| 288500-1KG | 04061838512932 |
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