288500
Gel di silice
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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About This Item
Numero CAS:
Numero CE:
Numero MDL:
Codice UNSPSC:
41115711
ID PubChem:
NACRES:
NC.07
Prodotti consigliati
Grado
high-purity grade
Livello qualitativo
Stato
powder
Produttore/marchio commerciale
Sigma-Aldrich
tecniche
thin layer chromatography (TLC): suitable
Area superficiale
~500 m2/g
Impurezze
≤0.01% Fe3+
Granulometria
2-22 μm
Dimensione pori
60 Å pore size
pH
~6.8 (10% in aq. suspension)
P. ebollizione
2230 °C
Punto di fusione
>1600 °C
Anioni in tracce
chloride (Cl-): ≤0.01%
Stringa SMILE
O=[Si]=O
InChI
1S/O2Si/c1-3-2
VYPSYNLAJGMNEJ-UHFFFAOYSA-N
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Descrizione generale
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
Applicazioni
Silica gel was used on glass plates to perform preparative thin layer chromatography.
Codice della classe di stoccaggio
11 - Combustible Solids
Classe di pericolosità dell'acqua (WGK)
nwg
Punto d’infiammabilità (°F)
Not applicable
Punto d’infiammabilità (°C)
Not applicable
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