403598

Supelco

Silica gel

high-purity grade (7754), pore size 60 Å, 70-230 mesh

CAS Number:
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
SB.52
Pricing and availability is not currently available.

grade

high-purity grade (7754)

Quality Level

form

powder

mfr. no.

EMD Millipore

application(s)

LPLC: suitable

matrix active group

silica

particle size

63-200 μm
70-230 mesh

pore size

~0.8 cm3/g pore volume
60 Å

surface area

550 m2/g

bp

2230 °C

mp

>1600 °C

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 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

Application

Silica gel was used to compare MCM-41 type mesoporous adsorbents.

Packaging

100, 500 g in poly bottle

Other Notes

Low levels of Fe, Cu, Zn, Cl-, SO42-, and NO3- reduce irreversible adsorption.

RIDADR

NONH for all modes of transport

WGK Germany

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

T Martin et al.
Chemical communications (Cambridge, England), (1)(1), 24-25 (2002-07-18)
Texture-related features of water intrusion in hydrophobised MCM-41 silicas render these materials especially suitable for energy dissipation in mechanical dampers.
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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