Silica gel
SIAL/60736 - high-purity grade, 40, 35-70 mesh, for column chromatography
CAS Number: 112926-00-8
EC Number: 231-545-4
MDL Number: MFCD00011232
Product Type: Chemical
| bp | 2230 °C |
| form | powder or crystals |
| grade | for column chromatography |
| high-purity grade | |
| InChI | 1S/O2Si/c1-3-2 |
| InChI key | VYPSYNLAJGMNEJ-UHFFFAOYSA |
| matrix | Silica |
| matrix active group | silica |
| mp | >1600 °C |
| particle size | 0.2-0.5 mm (35-70 mesh ASTM) |
| 35-70 mesh | |
| pore size | 90 Å mean pore size |
| Quality Level | 100  |
| separation technique | hydrophilic interaction (HILIC) |
| SMILES string | O=[Si]=O |
| surface area | 350 m2/g |
| technique(s) | LPLC: suitable |
| Application: | It has been used for the solid phase extraction (SPE) fractionation of organohalogen compounds in biological organ tissues. Silica gel column may be employed for the clean-up procedures in multiresidue methods of pesticide analyses and as a support for the fabrication of pentachlorophenol (PCP)-imprinted functionalized sorbents for the analysis of trace pentachlorophenol in water samples by SPE combined with high performance liquid chromatography (HPLC). |
| Application: | Silica gel may be used in separation of single-walled carbon nanotube (SWNT) by simple filtration. |
| 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 |