Silica gel Inorganic Sorbent

Name: Silica gel Inorganic Sorbent
Brand: SIAL
Price: 460 USD

high-purity grade (puriss), 70-230 mesh

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500 G

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About This Item

CAS Number:

7631-86-9

UNSPSC Code:

12352309

PubChem Substance ID:

329759185

NACRES:

SB.52

EC Number:

231-545-4

MDL number:

MFCD00011232

Key Documents

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Product Name

Silica gel, high-purity grade (puriss), pore size 60 Å, 70-230 mesh, for column chromatography

SMILES string

O=[Si]=O

InChI

1S/O2Si/c1-3-2

InChI key

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

grade

high-purity grade (puriss)

description

activity acc. to Brockmann and Schodder 2 - 3

form

powder

manufacturer/tradename

Sigma-Aldrich

technique(s)

LPLC: suitable

surface area

500 m²/g

matrix

Silica

matrix active group

silica

particle size

63-200 μm, 70-230 mesh

pore size

0.8 cm³/g pore volume, 60 Å

pH

6.0-7.5 (25 °C, 10% in H₂O)

bp

2230 °C

mp

>1600 °C

anion traces

chloride (Cl^-): ≤100 mg/kg, nitrate (NO₃^-): ≤50 mg/kg, sulfate (SO₄^2-): ≤50 mg/kg

cation traces

Cu: ≤5 mg/kg, Fe: ≤20 mg/kg, Pb: ≤5 mg/kg, Zn: ≤5 mg/kg

separation technique

hydrophilic interaction (HILIC)

Quality Level

100

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Analytical Chemistry

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Show Differences

1 of 4

This Item	60745	60746	60741
Supelco 60740 Silica gel	Supelco 60745 Silica gel	Supelco 60746 Silica gel	Supelco 60741 Silica gel
particle size 63-200 μm, 70-230 mesh	particle size 0.063-0.200 mm (70-230 mesh ASTM), 70-230 mesh	particle size 0.2-0.5 mm (35-70 mesh ASTM), 35-70 mesh	particle size 63-200 μm, 70-230 mesh
matrix active group silica	matrix active group silica	matrix active group silica	matrix active group silica
matrix Silica	matrix Silica	matrix Silica	matrix Silica
separation technique hydrophilic interaction (HILIC)	separation technique hydrophilic interaction (HILIC)	separation technique hydrophilic interaction (HILIC)	separation technique hydrophilic interaction (HILIC)
pore size 0.8 cm³/g pore volume, 60 Å	pore size 90 Å mean pore size	pore size 90 Å mean pore size	pore size 0.7-0.85 cm³/g pore volume, 60 Å average pore size (52-73 Å)
technique(s) LPLC: suitable	technique(s) LPLC: suitable	technique(s) LPLC: suitable	technique(s) LPLC: suitable

General description

Silica gel is a rigid 3D network of colloidal silica.[1] 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.[2] 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[1]

Application

Silica gel may be used in separation of single-walled carbon nanotube (SWNT) by simple filtration.[3]

Storage Class

11 - Combustible Solids

wgk

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Separation of single-walled carbon nanotubes on silica gel. Materials morphology and Raman excitation wavelength affect data interpretation.

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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