Properties:
Related Categories |
Analytical/Chromatography,
Davisil Grades,
Davisil Irregular Silica Gel,
Essential Chemicals,
Research Essentials,
|
grade
|
high-purity grade (Davisil Grade 635)
|
InChI Key
|
VYPSYNLAJGMNEJ-UHFFFAOYSA-N
|
assay
|
≥99%
|
form
|
powder or granules
|
mfr. no.
|
Davisil®
|
particle size
|
150-250 μm
|
|
60-100 mesh
|
pore size
|
0.75 cm3/g pore volume
|
|
60 ?
|
surface area
|
480 m2/g
|
pH
|
6.5 (5% in slurry)
|
bp
|
2230 °C
|
mp
|
>1600 °C
|
Description:
Packaging
1 kg in poly bottle
100 g in poly bottle
Application
Silica gel was used to compare MCM-41 type mesoporous adsorbents.
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
Legal Information
Davisil is a registered trademark of W.R. Grace & Co.-Conn.
Safety:
RIDADR
NONH for all modes of transport