1.01078
Aluminium oxide 90 active acidic (0.063-0.200 mm)
(activity stage I), for column chromatography
Synonym(s):
Aluminium oxide 90 active acidic (0.063-0.200 mm)
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About This Item
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
density
3.94 g/cm3 at 20 °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
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
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This Item | |||
|---|---|---|---|
| separation technique normal phase | separation technique - | separation technique - | separation technique hydrophilic interaction (HILIC) |
| particle size 63-200 μm | particle size 50-300 mesh | particle size 50-300 mesh | particle size 0.05-0.15 mm |
| matrix active group Irregular-Shaped Aluminum Oxide | matrix active group - | matrix active group - | matrix active group aluminum oxide |
| density 3.94 g/cm3 at 20 °C | density - | density - | density - |
| application(s) pharma/biopharma processes | application(s) - | application(s) - | application(s) - |
| mp 2050 °C | mp 2040 °C (lit.) | mp 2040 °C (lit.) | mp 2040 °C (lit.) |
Storage Class
13 - Non Combustible Solids
wgk
nwg
flash_point_f
Not applicable
flash_point_c
Not applicable
Certificates of Analysis (COA)
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