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403563 Sigma-Aldrich

Silica gel

high-purity grade (10180), pore size 40 Å, 70-230 mesh particle size

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Properties

Related Categories Analytical/Chromatography, EMD Millipore Grades, EMD Millipore Irregular Silica Gel, Essential Chemicals, Research Essentials,
grade   high-purity grade (10180)
form   powder
mfr. no.   EMD Millipore EMD Millipore®
particle size   63-200 μm
  70-230 mesh
pore size   ~0.68 cm3/g pore volume
  40 Å
surface area   750 m2/g
bp   2230 °C
mp   >1600 °C

Description

Features and Benefits

Small pore size and high surface area provide maximum capacity for small molecules

Packaging

1 kg in poly bottle

100 g in poly bottle

5 kg in fiber 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 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

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

Price and Availability

Safety & Documentation

Safety Information

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

References

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