60740

Silica gel Inorganic Sorbent

high-purity grade (puriss), 70-230 mesh

• Numéro CAS: 112926-00-8
• Numéro CE : 231-545-4
• Numéro MDL: MFCD00011232
• Code UNSPSC : 12352309
• ID de substance PubChem : 329759185
• Nomenclature NACRES : SB.52

Propriétés

• product name: Gel de silice, high-purity grade (puriss), pore size 60 Å, 70-230 mesh, for column chromatography
• Qualité: high-purity grade (puriss)
• Niveau de qualité: 100
• Description: activity acc. to Brockmann and Schodder 2 - 3
• Forme: powder
• Fabricant/nom de marque: Sigma-Aldrich
• Technique(s): LPLC: suitable
• Superficie: 500 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
• pH: 6.0-7.5 (25 °C, 10% in H₂O)
• Point d'ébullition: 2230 °C
• Pf: >1600 °C
• Traces d'anions: chloride (Cl^-): ≤100 mg/kg; nitrate (NO₃^-): ≤50 mg/kg; sulfate (SO₄^2-): ≤50 mg/kg
• Traces de cations: Cu: ≤5 mg/kg; Fe: ≤20 mg/kg; Pb: ≤5 mg/kg; Zn: ≤5 mg/kg
• 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

Application

Silica gel may be used in separation of single-walled carbon nanotube (SWNT) by simple filtration.

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
• Équipement de protection individuelle: Eyeshields, Gloves, type N95 (US)