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288586 Sigma-Aldrich

Silica gel

high-purity grade, pore size 60 Å, 2-25 μm particle size, without binder, with fluorescent indicator, pore volume 0.75 cm3/g, for thin layer chromatography

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Properties

Related Categories Adsorbents for TLC, Analytical/Chromatography, Essential Chemicals, LPLC/TLC/Paper Chromatography, Other Silica Gels,
grade   for thin layer chromatography
  high-purity grade
InChI Key   VYPSYNLAJGMNEJ-UHFFFAOYSA-N
form   powder
mfr. no.   Sigma-Aldrich
impurities   ≤0.01% Fe3+
particle size   2-25 μm
pore size   0.75 cm3/g pore volume
  60 Å pore size
surface area   ~500 m2/g
pH   ~6.8 (10% in aq. suspension)
bp   2230 °C
mp   >1600 °C
anion traces   chloride (Cl-): ≤0.01%

Description

Packaging

1 kg in poly bottle

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. It 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

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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