Silica gel
SIAL/236845 - high-purity grade (Davisil Grade 646), 35-60 mesh, pore size 150 Å
CAS Number: 7631-86-9
EC Number: 231-545-4
MDL Number: MFCD00011232
Product Type: Chemical
| assay | ≥99% |
| bp | 2230 °C |
| form | powder |
| grade | high-purity grade (Davisil Grade 646) |
| InChI | 1S/O2Si/c1-3-2 |
| InChI key | VYPSYNLAJGMNEJ-UHFFFAOYSA |
| manufacturer/tradename | Davisil® |
| matrix | Silica |
| matrix active group | silica |
| mp | >1600 °C |
| particle size | 250-500 μm |
| 35-60 mesh | |
| pH | 7.0 (5% in slurry) |
| pore size | 1.15 cm3/g pore volume |
| 150 Å | |
| Quality Level | 100  |
| separation technique | hydrophilic interaction (HILIC) |
| SMILES string | O=[Si]=O |
| surface area | 300 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. |
| Legal Information: | Davisil is a registered trademark of W.R. Grace & Co.-Conn. |
| Packaging: | 1 kg in poly bottle |
| Packaging: | 100 g in poly bottle |
| RIDADR | NONH for all modes of transport |
| WGK Germany | nwg |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥99% |
| bp | 2230 °C |
| mp | >1600 °C |
| UNSPSC | 23201100 |