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288519 Sigma-Aldrich

Silica gel

high-purity grade, pore size 60 Å, 5-25 μm particle size, without binder, 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   ≤0.001% Fe3+
particle size   5-25 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-): ≤0.003%

Description

Packaging

250 g in poly bottle

Application

Silica gel was used on glass plates to perform preparative thin layer chromatography.

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

Suggested Laboratory Gloves


Laboratory GlovesThis substance has been tested against several types of hand protection for CE compliance. Click below to find the recommended gloves for handling this product.



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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