Silica gel spherical
SUPELCO/53698 - 40-75 μm particle size
Synonym: Silica gel
CAS Number: 7631-86-9
EC Number: 231-545-4
MDL Number: MFCD00011232
Product Type: Chemical
| bp | 2230 °C |
| form | powder |
| grade | high-purity grade |
| InChI | 1S/O2Si/c1-3-2 |
| InChI key | VYPSYNLAJGMNEJ-UHFFFAOYSA |
| loss | ~5% loss on drying |
| manufacturer/tradename | Sigma-Aldrich |
| matrix | Silica |
| matrix active group | silica |
| mp | >1600 °C |
| particle size | 200-400 mesh |
| 40-75 μm | |
| pH | ~7 (5% in H2O, suspension) |
| pore size | 0.7-0.9 cm3/g pore volume |
| 60 Å pore size | |
| Quality Level | 100  |
| separation technique | hydrophilic interaction (HILIC) |
| SMILES string | O=[Si]=O |
| surface area | 450-550 m2/g |
| technique(s) | LPLC: suitable |
| 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. |
| RIDADR | NONH for all modes of transport |
| WGK Germany | nwg |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| bp | 2230 °C |
| mp | >1600 °C |
| UNSPSC | 23201100 |