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60736 Sigma-Aldrich

Silica gel

high-purity grade, 40, 35-70 mesh, for column chromatography

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Properties

Related Categories Adsorbents (Inorganic), Analytical/Chromatography, LPLC Separation Media, LPLC/TLC/Paper Chromatography, Silica More...
grade   for column chromatography
  high-purity grade
InChI Key   VYPSYNLAJGMNEJ-UHFFFAOYSA-N
form   powder or crystals
particle size   0.2-0.5 mm (35-70 mesh ASTM)
  35-70 mesh
bp   2230 °C
mp   >1600 °C

Description

Application

Silica gel may be used in separation of single-walled carbon nanotube (SWNT) by simple filtration.

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

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Laboratory Gloves
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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