53698

Silica gel Inorganic Sorbent

spherical, 200-360 mesh

• Sinônimo(s): Silica gel
• Número CAS: 112926-00-8
• Número CE: 231-545-4
• Número MDL: MFCD00011232
• Código UNSPSC: 23201100
• ID de substância PubChem: 329757970
• NACRES: SB.52

Propriedades

• product name: Gel de sílica, 40-75 μm particle size
• grau: high-purity grade
• forma: powder
• fabricante/nome comercial: Sigma-Aldrich
• técnica(s): LPLC: suitable
• área da superfície: 450-550 m²/g
• perda: ~5% loss on drying
• matriz: Silica
• Grupo ativo da matriz: silica
• tamanho de partícula: 200-400 mesh; 40-75 μm
• tamanho de poro: 0.7-0.9 cm³/g pore volume; 60 Å pore size
• pH: ~7 (5% in H₂O, suspension)
• pb: 2230 °C
• pf: >1600 °C
• técnica de separação: hydrophilic interaction (HILIC)
• cadeia de caracteres SMILES: O=[Si]=O
• InChI: 1S/O2Si/c1-3-2
• chave InChI: VYPSYNLAJGMNEJ-UHFFFAOYSA-N

Descrição

Descrição geral

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.

Informações de segurança

• Código de classe de armazenamento: 11 - Combustible Solids
• Classe de risco de água (WGK): nwg
• Ponto de fulgor (°F): Not applicable
• Ponto de fulgor (°C): Not applicable