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Supelco

Silica gel Inorganic Sorbent

high-purity grade, 35-70 mesh

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CAS Number:
112926-00-8
EC Number:
231-545-4
MDL number:
MFCD00011232
UNSPSC Code:
23201100
PubChem Substance ID:
329759180
NACRES:
SB.52

product name

Silica gel, high-purity grade, 40, 35-70 mesh, for column chromatography

grade

for column chromatography
high-purity grade

Quality Level

100

form

powder or crystals

technique(s)

LPLC: suitable

surface area

350 m2/g

matrix

Silica

matrix active group

silica

particle size

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

pore size

90 Å mean pore size

bp

2230 °C

mp

>1600 °C

separation technique

hydrophilic interaction (HILIC)

SMILES string

O=[Si]=O

InChI

1S/O2Si/c1-3-2

InChI key

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

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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. 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

Application

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.

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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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)
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)
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)

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