1.01097
Aluminium oxide 90 standardized
for column chromotographic adsorption analysis acc. to Brockmann
Synonyme(s) :
Aluminium oxide 90 standardized
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A propos de cet article
material
aluminum oxide (irregularly-shaped)
Quality Segment
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)
pharma/biopharma processes
plasma purification
separation technique
normal phase
storage temp.
no temp limit
SMILES string
[Al+3].[Al+3].[O-2].[O-2].[O-2]
InChI
1S/2Al.3O/q2*+3;3*-2
InChI key
PNEYBMLMFCGWSK-UHFFFAOYSA-N
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
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Cet article | |||
|---|---|---|---|
| separation technique normal phase | separation technique normal phase | separation technique normal phase | separation technique - |
| particle size 63-200 μm | particle size 63-200 μm | particle size 63-200 μm | particle size 50-300 mesh |
| matrix active group Irregular-Shaped Aluminum Oxide | matrix active group Irregular-Shaped Aluminum Oxide | matrix active group Irregular-Shaped Aluminum Oxide | matrix active group - |
| storage temp. no temp limit | storage temp. no temp limit | storage temp. no temp limit | storage temp. - |
| mp 2050 °C | mp 2050 °C | mp 2050 °C | mp 2040 °C (lit.) |
| pore size 9 nm mean pore size | pore size 9 nm mean pore size | pore size 9 nm mean pore size | pore size 58 Å pore size |
Classe de stockage
13 - Non Combustible Solids
wgk
nwg
flash_point_f
Not applicable
flash_point_c
Not applicable
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