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343323 Sigma-Aldrich

Silica gel

Davisil® grade 22, pore size 60 Å, 60-200 mesh

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Properties

Related Categories Essential Chemicals, Other Silica Gels, Research Essentials, Silica Gels
grade   Davisil® grade 22
InChI Key   VYPSYNLAJGMNEJ-UHFFFAOYSA-N
form   powder or crystals
particle size   60-200 mesh
pore size   60 Å
bp   2230 °C
mp   >1600 °C

Description

Packaging

1 kg in poly bottle

Application

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

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

Legal Information

Davisil is a registered trademark of W.R. Grace & Co.-Conn.

Price and Availability

Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
nwg
RTECS 
VV7315000

Documents

Certificate of Analysis

Certificate of Origin

Protocols & Articles
Peer-Reviewed Papers
15

References

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