288519

Gel de sílice

high-purity grade, pore size 60 Å, 5-25 μm particle size, without binder, suitable for thin layer chromatography (TLC)

• Número de CAS: 112926-00-8
• Número CE: 231-545-4
• Número MDL: MFCD00011232
• Código UNSPSC: 41115711
• ID de la sustancia en PubChem: 24857347
• NACRES: NB.21

Propiedades

• Materiales: plastic support; silica gel 60 matrix
• Nivel de calidad: 100
• grado: high-purity grade
• Formulario: powder
• Características: binder Organic Polymer; fluorescent indicator: no
• envase: pkg of 250 g
• fabricante / nombre comercial: Sigma-Aldrich
• técnicas: thin layer chromatography (TLC): suitable
• superficie: ~500 m²/g
• impurezas: ≤0.001% Fe³⁺
• tamaño de partícula: 5-25 μm
• tamaño de poro: 0.75 cm³/g pore volume; 60 Å medium pore diameter; 60 Å pore size
• pH: ~6.8 (10% in aq. suspension)
• bp: 2230 °C
• mp: >1600 °C
• trazas de anión: chloride (Cl^-): ≤0.003%
• cadena SMILES: O=[Si]=O
• InChI: 1S/O2Si/c1-3-2
• Clave InChI: VYPSYNLAJGMNEJ-UHFFFAOYSA-N

Descripción

Descripción general

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. It 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

Aplicación

Silica gel was used on glass plates to perform preparative thin layer chromatography.

Información de seguridad

• Código de clase de almacenamiento: 11 - Combustible Solids
• Clase de riesgo para el agua (WGK): nwg
• Punto de inflamabilidad (°F): Not applicable
• Punto de inflamabilidad (°C): Not applicable