Description
Aluminium oxide 90 neutral is a column-chromatography sorbent with CAS number 1344-28-1 and empirical formula Al₂O₃. It has a molar mass of 101,94 g/mol, density of 3,97 g/cm³ and boiling point of 2980 °C. The neutral activity grade is chosen when acidic or basic alumina would alter analyte integrity, supporting separations of sensitive organic compounds. Neutral aluminium oxide complements silica-based sorbents where different selectivity or polarity is required. This material from manufacturer Carl ROTH is positioned for routine chromatography inventories in research, teaching and quality-control settings. Pack columns according to standard laboratory practice, select eluents matched to the sample polarity, and consult the safety data sheet before use with organic solvents or under elevated temperature.
This article is part of Sorbents, silica gel & ion exchangers, in SPE & sample preparation.
Key features
- pH-value: 6,5-7,5
- Specific surface: 90-170 m²/g
- <50 µm: ≤10 %
- >200 µm: ≤5 %
- CAS number: 1344-28-1
- Pack sizes: 500 g, 1 kg, 2.5 kg
- EG nr.: 215-691-6
- Molar mass: 101,94 g/mol
- Density: 3,97 g/cm³
- Technical Information Sheet:
- Safety Data Sheet:
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Questions about Aluminium oxide 90 neutral, for column chromatography, 500 g, plastic
What is this article?
Aluminium oxide 90 neutral, for column chromatography, 500 g, plastic is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Sorbents, silica gel & ion exchangers, inside SPE & sample preparation, in Chromatography equipment.
Loose sorbent, silica gel and ion-exchange resin are the phases bought in bulk to pack a column or to stir into a solution. Particle size and activity, or the ion-exchange capacity, are the specification. A TLC silica and a flash silica of different particle sizes are not the same separation.
Solid-phase extraction holds a compound on a sorbent while the rest of the sample is washed away, then releases it in a small volume. The sorbent, the bed mass and the solvents are the method. Silica, ion exchangers and polymer phases do different jobs. A flash column is the same idea scaled toward purification rather than trace cleanup. The molecules are on PubChem, named by IUPAC.
Which category should I open next?
The category is SPE & sample preparation. The sub-category is Sorbents, silica gel & ion exchangers. The catalogue is Chromatography equipment.
Shelves beside this one are SPE cartridges & columns and Flash, empty & glass chromatography columns.
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.