53698

Silica gel Inorganic Sorbent

spherical, 200-360 mesh

• Synonyme(s) : Silica gel
• Numéro CAS: 112926-00-8
• Numéro CE : 231-545-4
• Numéro MDL: MFCD00011232
• Code UNSPSC : 23201100
• ID de substance PubChem : 329757970
• Nomenclature NACRES : SB.52

Propriétés

• product name: Gel de silice, 40-75 μm particle size
• Qualité: high-purity grade
• Forme: powder
• Fabricant/nom de marque: Sigma-Aldrich
• Technique(s): LPLC: suitable
• Superficie: 450-550 m²/g
• Perte: ~5% loss on drying
• Matrice: Silica
• Groupe de la matrice active: silica
• Taille des particules: 200-400 mesh; 40-75 μm
• Dimension de pores: 0.7-0.9 cm³/g pore volume; 60 Å pore size
• pH: ~7 (5% in H₂O, suspension)
• Point d'ébullition: 2230 °C
• Pf: >1600 °C
• Technique de séparation: hydrophilic interaction (HILIC)
• Chaîne SMILES: O=[Si]=O
• InChI: 1S/O2Si/c1-3-2
• Clé InChI: VYPSYNLAJGMNEJ-UHFFFAOYSA-N

Description

Description générale

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.

Informations sur la sécurité

• Code de la classe de stockage: 11 - Combustible Solids
• Classe de danger pour l'eau (WGK): nwg
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable