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403598

Supelco

Silica gel Inorganic Sorbent

high-purity grade (7754), 70-230 mesh

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About This Item

CAS Number:
112926-00-8
EC Number:
231-545-4
MDL number:
MFCD00011232
UNSPSC Code:
23201100
PubChem Substance ID:
24865203
NACRES:
SB.52

product name

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

grade

high-purity grade (7754)

Quality Level

100

form

powder

manufacturer/tradename

EMD Millipore®

technique(s)

LPLC: suitable

surface area

550 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

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 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.

Other Notes

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

Legal Information

EMD Millipore is a registered trademark of Merck KGaA, Darmstadt, Germany

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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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
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