403598

Silica gel Inorganic Sorbent

high-purity grade (7754), 70-230 mesh

• Numéro CAS: 112926-00-8
• Numéro CE : 231-545-4
• Numéro MDL: MFCD00011232
• Code UNSPSC : 23201100
• ID de substance PubChem : 24865203
• Nomenclature NACRES : SB.52

Propriétés

• product name: Gel de silice, high-purity grade (7754), pore size 60 Å, 70-230 mesh
• Qualité: high-purity grade (7754)
• Niveau de qualité: 100
• Forme: powder
• Fabricant/nom de marque: EMD Millipore^®
• Technique(s): LPLC: suitable
• Superficie: 550 m²/g
• Matrice: Silica
• Groupe de la matrice active: silica
• Taille des particules: 63-200 μm; 70-230 mesh
• Dimension de pores: ~0.8 cm³/g pore volume; 60 Å
• 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 resulting in the formation of 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

Application

Silica gel was used to compare MCM-41 type mesoporous adsorbents.

Autres remarques

Des quantités faibles de Fe, Cu, Zn, Cl^-, SO₄^2-, et NO₃^- reduisent les adsorptions irréversible.

Informations légales

EMD Millipore is a registered trademark of Merck KGaA, Darmstadt, Germany

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