11028
Aluminum oxide
puriss., ≥98% Al2O3 basis
Synonym(s):
Alumina
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About This Item
Linear Formula:
Al2O3
CAS Number:
Molecular Weight:
101.96
EC Number:
MDL number:
UNSPSC Code:
12352311
eCl@ss:
38120402
PubChem Substance ID:
grade
puriss.
Assay
≥98% Al2O3 basis
form
solid
impurities
≤0.005% heavy metals (as Pb)
≤0.2% alkalis (as Na2O)
loss
≤0.5% loss on ignition, 1000 °C, 2 h
mp
2040 °C (lit.)
anion traces
chloride (Cl-): ≤50 mg/kg
silicate (as SiO2): ≤1000 mg/kg
sulfate (SO42-): ≤500 mg/kg
cation traces
Fe: ≤300 mg/kg
SMILES string
O=[Al]O[Al]=O
InChI
1S/2Al.3O
InChI key
TWNQGVIAIRXVLR-UHFFFAOYSA-N
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General description
Aluminum oxide (Alumina, Al2O3) is commonly used as adsorbent. Formation of protective α-Al2O3 scales on the alloys at high temperatures has been studied. Polycrystalline Al2O3 has been employed to investigate the self-diffusion coefficient of aluminum in the temperature range of 1670°-1905°C. Aluminium oxide can either be obtained via thermal conversion of aluminium hydroxide at temperatures >1200οC or via combustion of aluminium. Aluminium oxide nanoparticles can behave like safe adjuvants and carriers for eliciting antibodies from small molecules called haptens.
Application
Aluminum oxide (Alumina) may be employed for the selective adsorption of the catecholamines during their determination in diverse biological matrices. It may be used in the fabrication of polycrystalline lithium iodide - aluminum oxide solid electrolytes. The incorporation of aluminum oxide remarkably increased the conductivity of lithium iodide. Aluminum oxide (activity II-III, according to the Brockmann scale) has been used for the chromatographic purifications.
Storage Class Code
13 - Non Combustible Solids
WGK
nwg
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
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"Aluminum oxide nanoparticles as carriers and adjuvants for eliciting antibodies from non-immunogenic haptens"
Maquieira A, et al.
Analytical Chemistry, 84(21), 9340-9348 (2012)
Eastaugh N, et al
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A study of the factors affecting the aluminum oxide-trihydroxyindole procedure for the analysis of catecholamines.
A H ANTON et al.
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