381276

Silica Inorganic Sorbent

120-140 mesh, 99.8%

• Sinónimos: Silica, fumed, Silica, Silicic anhydride, Silicon dioxide, Silicon dioxide amorphous
• Fórmula lineal: SiO₂
• Número de CAS: 112945-52-5
• Peso molecular: 60.08
• Número MDL: MFCD00011232
• Código UNSPSC: 23201100
• ID de la sustancia en PubChem: 24863799
• NACRES: SB.52

Propiedades

• product name: Silica, 99.8%
• grado: standard
• Análisis: 99.8%
• formulario: powder
• técnicas: LPLC: suitable
• superficie: 175-225 m²/g
• matriz: Silica
• grupo activo de la matriz: silica
• tamaño de partícula: 0.011 μm
• tamaño de poro: 60 Å mean pore size
• técnica de separación: hydrophilic interaction (HILIC)
• cadena SMILES: O=[Si]=O
• InChI: 1S/O2Si/c1-3-2
• Clave InChI: VYPSYNLAJGMNEJ-UHFFFAOYSA-N

Descripción

Descripción general

Silica is a naturally occurring material in minerals, flint and in some plants in crystalline phase. Silica commonly used in industries is in synthetic form. Surface area, pore volume, pore size and particle size are independently controllable to some extent. The crystalline silica may be classified based on atmospheric pressure as:
a. Quartz: = 1143K
b. Tridymite: 1143 - 1743K
c. Cristobalite: = 1743, over 1973K it forms amorphous vitreous silica glass.

Aplicación

Silica was used in synthesis of silicalite. Silica was used to assist the catalytic growth of oxide and nitride nanowires.

Características y beneficios

Has interesting thickening and thixotropic properties, and an enormous external surface area.

Otras notas

Particle sizes are for primary particles, which form branched, chain-like aggregates a few tenths of a micron long.

May contain adsorbed H₂O and CO₂ which is removable by calcining at >900°C

Información de seguridad

• Código de clase de almacenamiento: 13 - Non Combustible Solids
• Clase de riesgo para el agua (WGK): WGK 2
• Punto de inflamabilidad (°F): Not applicable
• Punto de inflamabilidad (°C): Not applicable
• Equipo de protección personal: Eyeshields, Gloves, type N95 (US)