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214426 Sigma-Aldrich

Silica gel

technical grade 40, 6-12 mesh

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Properties

Related Categories Essential Chemicals, Other Silica Gels, Research Essentials, Silica Gels
grade   technical grade 40
InChI Key   VYPSYNLAJGMNEJ-UHFFFAOYSA-N
form   powder
particle size   6-12 mesh
bp   2230 °C
mp   >1600 °C

Description

Features and Benefits

Meets MIL-D-3716, type II, grade H specifications.

Packaging

1 kg in poly bottle

5 kg in poly drum

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 lresulting 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

Price and Availability

Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
nwg
RTECS 
VV7315000
Protocols & Articles
Peer-Reviewed Papers
15

References

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