1.01076

Aluminium oxide 90 active basic (0.063-0.200 mm)

(activity stage I) for column chromatography

• Código UNSPSC: 41115711

Propriedades

• Materiais: aluminum oxide (irregularly-shaped)
• Nível de qualidade: 100
• Grupo ativo da matriz: Irregular-Shaped Aluminum Oxide
• tamanho de partícula: 63-200 μm
• tamanho de poro: 9 nm mean pore size
• pH: 8.5-10.5 (20 °C, 100 g/L in H₂O, slurry)
• pb: 2980 °C/1013 hPa
• pf: 2050 °C
• densidade: 4.0 g/cm³ at 20 °C
• densidade volumétrica: 500‑900 kg/m³
• aplicação(ões): plasma purification
• técnica de separação: normal phase
• temperatura de armazenamento: no temp limit

Descrição

Descrição geral

A versatile sorbent for preparative chromatography exhibiting a higher pH stability

Características e benefícios

Aluminum Oxide 90 active basic provides users with:

An aluminum oxide crystal structure comprises octahedrally and tetrahedrally coordinated aluminum coupled by oxygen atoms. The surface is covered by free hydroxyl groups. There are different acidic and basic centers that result in anion and cation exchange properties. Aluminum oxide exhibits a higher pH-stability than silica gel, especially in the alkaline range and occurs in various crystal modifications resulting in different pore diameters.

Embalagem

Plastic bottle

Nota de análise

Activity: I
pH-value (10 % suspension): 8.5 - 10.5
Substances extractable by water: ≤ 0.2 %
Chloride (Cl): ≤ 0.004 %
Sulfate (SO₄): ≤ 0.1 %
Speed of filtration: ≥ 0.3 ml/min
Particle size: 70 % between 0.063 - 0.200 mm
Setting of activity according to the Brockmann activity grades adjusted to a migration distance of 30 mm:
I: activity I
II: activity II
III: activity III
IV: activity IV
V: activity V

Informações de segurança

• Código de classe de armazenamento: 13 - Non Combustible Solids
• Classe de risco de água (WGK): nwg
• Ponto de fulgor (°F): Not applicable
• Ponto de fulgor (°C): Not applicable