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53698

Supelco

Silica gel spherical

40-75 μm particle size

Synonym(s):
Silica gel
CAS Number:
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
SB.52

grade

high-purity grade

Quality Level

form

powder

manufacturer/tradename

Sigma-Aldrich

technique(s)

LPLC: suitable

loss

~5% loss on drying

matrix

Silica

matrix active group

silica

particle size

200-400 mesh
40-75 μm

pore size

0.7-0.9 cm3/g pore volume
60 Å pore size

surface area

450-550 m2/g

pH

~7 (5% in H2O, suspension)

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

Related Categories

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.

Storage Class Code

11 - Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

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Certificate of Origin

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