1.01097
Aluminium oxide 90 standardized
for column chromotographic adsorption analysis acc. to Brockmann
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
Storage Class Code
13 - Non Combustible Solids
WGK
nwg
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
Already Own This Product?
Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.
Difficulty Finding Your Product Or Lot/Batch Number?
How to Find the Product Number
Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (example: T1503).
Example:
Additional examples:
705578-5MG-PW
PL860-CGA/SHF-1EA
MMYOMAG-74K-13
1000309185
enter as 1.000309185)
Having trouble? Feel free to contact Technical Service for assistance.
How to Find a Lot/Batch Number for COA
Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.
Aldrich Products
For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').
For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').
For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.
Not Finding What You Are Looking For?
In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.
Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.
Contact Technical Service