53698

Silica gel Inorganic Sorbent

spherical, 200-360 mesh

• 別名: Silica gel
• CAS番号: 112926-00-8
• EC Number: 231-545-4
• MDL番号: MFCD00011232
• UNSPSCコード: 23201100
• PubChem Substance ID: 329757970
• NACRES: SB.52

特性

• 製品名: シリカゲル, 40-75 μm particle size
• グレード: high-purity grade
• 品質水準: 100
• フォーム: powder
• メーカー／製品名: Sigma-Aldrich
• テクニック: LPLC: suitable
• 表面積: 450-550 m²/g
• 損失: ~5% loss on drying
• Matrix: Silica
• マトリックス活性基: silica
• 粒径: 200-400 mesh; 40-75 μm
• ポアサイズ: 0.7-0.9 cm³/g pore volume; 60 Å pore size
• pH: ~7 (5% in H₂O, suspension)
• bp: 2230 °C
• mp: >1600 °C
• 分離法: hydrophilic interaction (HILIC)
• SMILES記法: O=[Si]=O
• InChI: 1S/O2Si/c1-3-2
• InChI Key: VYPSYNLAJGMNEJ-UHFFFAOYSA-N

詳細

詳細

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.

安全性情報

• 保管分類コード: 11 - Combustible Solids
• WGK: nwg
• 引火点(°F): Not applicable
• 引火点(℃): Not applicable