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特別 提示
CAS Number 112926-00-8
EC Number 231-545-4
MDL number MFCD00011232
PubChem Substance ID 329759185
| Related Categories | Adsorbents (Inorganic), Analytical/Chromatography, Irregular Silica Gel, High-Purity Grade, LPLC Separation Media, LPLC/TLC/Paper Chromatography, |
| grade | high-purity grade (puriss) |
| InChI Key |
VYPSYNLAJGMNEJ-UHFFFAOYSA |
| form | powder |
| mfr. no. | Sigma-Aldrich® |
| activity acc. to Brockmann and Schodder | 2-3 |
| particle size | 63-200 μm |
| 70-230 mesh |
Silica gel may be used in separation of single-walled carbon nanotube (SWNT) by simple filtration.
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
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