物料
aluminum oxide (irregularly-shaped)
质量水平
效能
>5000 mg/kg LD50, oral (Rat)
基质活性基团
Irregular-Shaped Aluminum Oxide
粒径
63-200 μm
孔径
9 nm mean pore size
bp
2980 °C/1013 hPa
mp
2050 °C
密度
3.94 g/cm3 at 20 °C
应用
plasma purification
分离技术
normal phase
储存温度
no temp limit
InChI
1S/2Al.3O/q2*+3;3*-2
InChI key
PNEYBMLMFCGWSK-UHFFFAOYSA-N
一般描述
A versatile sorbent for preparative chromatography exhibiting a higher pH stability
特点和优势
Aluminum oxide 90 active acidic (0.063-0.200 mm) 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.
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.
包装
Plastic bottle
分析说明
Activity: I
pH-value (10 % suspension): 3.5 - 4.5
Substances extractable by water: ≤ 0.2 %
Chloride (Cl): ≤ 0.2 %
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
pH-value (10 % suspension): 3.5 - 4.5
Substances extractable by water: ≤ 0.2 %
Chloride (Cl): ≤ 0.2 %
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
储存分类代码
13 - Non Combustible Solids
WGK
nwg
闪点(°F)
Not applicable
闪点(°C)
Not applicable
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