Silica gel
SIAL/288500 - high-purity grade, pore size 60 Å, 2-22 μm particle size distribution, without binder, suitable for thin layer chromatography (TLC)
CAS Number: 7631-86-9
EC Number: 231-545-4
MDL Number: MFCD00011232
Product Type: Chemical
| anion traces | chloride (Cl-): ≤0.01% |
| bp | 2230 °C |
| form | powder |
| grade | high-purity grade |
| impurities | ≤0.01% Fe3+ |
| InChI | 1S/O2Si/c1-3-2 |
| InChI key | VYPSYNLAJGMNEJ-UHFFFAOYSA |
| manufacturer/tradename | Sigma-Aldrich |
| mp | >1600 °C |
| particle size distribution | 2-22 μm |
| pH | ~6.8 (10% in aq. suspension) |
| pore size | 60 Å pore size |
| Quality Level | 100  |
| SMILES string | O=[Si]=O |
| surface area | ~500 m2/g |
| technique(s) | thin layer chromatography (TLC): suitable |
| Application: | Silica gel was used on glass plates to perform preparative thin layer chromatography. |
| 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. It 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 |
| Packaging: | 1 kg in poly bottle |
| 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 | 41115711 |