浜у搧璇存槑
涓€鑸弿杩?/p>
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
搴旂敤
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).
Silica gel may be used in separation of single-walled carbon nanotube (SWNT) by simple filtration.
鍩烘湰淇℃伅
| EC 鍙饵/td> | 231-545-4 |
| MDL缂栧彿 | MFCD00011232 |
| PubChem鍖栧鐗╄川缂栧彿 | 329759180 |
| NACRES | SB.52 |
浜у搧鎬ц川
| 璐ㄩ噺姘村钩 | 100 |
| 绛夌骇 | for column chromatography high-purity grade |
| 褰㈠紡 | powder or crystals |
| technique(s) | LPLC: suitable |
| 鍩鸿川 | Silica |
| 鍩鸿川娲绘€у熀鍥↑/td> | silica |
| 绮掑緞 | 0.2-0.5 mm (35-70 mesh ASTM) 35-70 mesh |
| 瀛斿緞 | 90 ? mean pore size |
| 琛ㄩ潰绉?/td> | 350 m2/g |
| bp | 2230 鈩傸/td> |
| mp | >1600 鈩傸/td> |
| 鍒嗙鎶€鏈?/td> | hydrophilic interaction (HILIC) |
| 鍌ㄥ瓨娓╁害 | 2-8鈩傸/td> |
| SMILES string | O=[Si]=O |
| InChI | 1S/O2Si/c1-3-2 |
| InChI key | VYPSYNLAJGMNEJ-UHFFFAOYSA-N |
瀹夊叏淇℃伅
| 鍌ㄥ瓨鍒嗙被浠ｇ爜 | 11 - Combustible Solids |
| WGK | nwg |
| 闂偣(F) | Not applicable |
| 闂偣(C) | Not applicable |
| 涓汉闃叉姢瑁呭 | Eyeshields, Gloves, type N95 (US) |
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