EMAIL THIS PAGE TO A FRIEND
60750 Sigma-Aldrich

Silica gel

high-purity grade, 40Å, 230-400 mesh, for preparative liquid chromatography

Purchase

Properties

Related Categories Adsorbents (Inorganic), Analytical/Chromatography, LPLC Separation Media, LPLC/TLC/Paper Chromatography, Silica More...
grade   for preparative liquid chromatography
  high-purity grade
InChI Key   VYPSYNLAJGMNEJ-UHFFFAOYSA-N
form   powder
activity acc. to Brockmann and Schodder   2-3
particle size   0.040-0.063 mm (230-400 mesh ASTM)
  230-400 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

Price and Availability


Laboratory Gloves
Safety & Documentation

Safety Information

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

References

Related Products

Technical Service:

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Bulk Ordering & Pricing:

Need larger quantities for your development, manufacturing or research applications?