1.01097
Aluminium oxide 90 standardized
for column chromotographic adsorption analysis acc. to Brockmann
Synonym(s):
Aluminium oxide 90 standardized
About This Item
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material
aluminum oxide (irregularly-shaped)
Quality Level
description
for column chromotographic adsorption analysis acc. to Brockmann
potency
>5000 mg/kg LD50, oral (Rat)
matrix active group
Irregular-Shaped Aluminum Oxide
particle size
63-200 μm
pore size
9 nm mean pore size
bp
2980 °C/1013 hPa
mp
2050 °C
application(s)
plasma purification
separation technique
normal phase
storage temp.
no temp limit
InChI
1S/2Al.3O/q2*+3;3*-2
InChI key
PNEYBMLMFCGWSK-UHFFFAOYSA-N
Related Categories
General description
Features and Benefits
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.
Packaging
Analysis Note
Substances extractable by water: ≤ 0.5 %
Chloride (Cl): ≤ 0.1 %
Sulfate (SO₄): ≤ 0.1 %
Speed of filtration: ≥ 0.2 ml/min
Activity: II - III
Particle size: 70 % between 0.063 - 0.200 mm
wgk_germany
nwg
flash_point_f
Not applicable
flash_point_c
Not applicable
Certificates of Analysis (COA)
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