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Key Documents

60736

Supelco

Silica gel Inorganic Sorbent

high-purity grade, 35-70 mesh

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About This Item

Numero CAS:
Numero CE:
Numero MDL:
Codice UNSPSC:
23201100
ID PubChem:
NACRES:
SB.52

product name

Gel di silice, high-purity grade, 40, 35-70 mesh, for column chromatography

Grado

for column chromatography
high-purity grade

Livello qualitativo

Forma fisica

powder or crystals

tecniche

LPLC: suitable

Area superficiale

350 m2/g

Matrice

Silica

Gruppo funzionale matrice

silica

Dimensione particelle

0.2-0.5 mm (35-70 mesh ASTM)
35-70 mesh

Dimensione pori

90 Å mean pore size

P. eboll.

2230 °C

Punto di fusione

>1600 °C

Tecnica di separazione

hydrophilic interaction (HILIC)

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. Silica gel allows a controlled fragmentation leading to form 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

Applicazioni

It has been used for the solid phase extraction (SPE) fractionation of organohalogen compounds in biological organ tissues. Silica gel column may be employed for the clean-up procedures in multiresidue methods of pesticide analyses and as a support for the fabrication of pentachlorophenol (PCP)-imprinted functionalized sorbents for the analysis of trace pentachlorophenol in water samples by SPE combined with high performance liquid chromatography (HPLC).
Silica gel may be used in separation of single-walled carbon nanotube (SWNT) by simple filtration.

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

Dispositivi di protezione individuale

Eyeshields, Gloves, type N95 (US)


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Gel di silice

Analyses of pesticides and their metabolites in foods and drinks.
Ahmed, et al.
TrAC, Trends in Analytical Chemistry, 20(11), 649-661 (2001)
Development of an accelerated solvent extraction and gel permeation chromatography analytical method for measuring persistent organohalogen compounds in adipose and organ tissue analysis.
Saito, et al.
Chemosphere, 57(5), 373-381 (2004)
Preparation and evaluation of a molecularly imprinted sol-gel material for on-line solid-phase extraction coupled with high performance liquid chromatography for the determination of trace pentachlorophenol in water samples.
Han, et al.
Journal of Chromatography A, 1100(2), 131-136 (2005)
Christopher A Dyke et al.
Journal of the American Chemical Society, 127(12), 4497-4509 (2005-03-24)
In this report, procedures are discussed for the enrichment of single-walled carbon nanotube (SWNT) types by simple filtration of the functionalized SWNTs through silica gel. This separation uses nanotube sidewall functionalization employing two different strategies. In the first approach, a
A simple method for production of pure silica from rice hull ash
Kalapathy, U., A. Proctor, and J. Shultz.
Bioresource Technology, 73, 257-262 (2000)

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