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60760 Sigma-Aldrich

Silica gel

high-purity grade, Type G, with ~13% calcium sulfate, for thin layer chromatography

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Properties

Related Categories Adsorbents for TLC, Analytical/Chromatography, LPLC/TLC/Paper Chromatography, Silica TLC Adsorbent, with binder, no indicator, Silica TLC Adsorbents,
grade   for thin layer chromatography
  high-purity grade
InChI Key   VYPSYNLAJGMNEJ-UHFFFAOYSA-N
form   powder
quality   with ~13% calcium sulfate
mfr. no.   Sigma-Aldrich
particle size   <20 μm
  >632 mesh
pore size   0.7-0.85 cm3/g pore volume
  60 Å pore size
surface area   500 m2/g
bp   2230 °C
mp   >1600 °C

Description

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

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Laboratory Gloves
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Safety Information

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

References

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