All Photos(1)
Synonym(s):
Alumina
Linear Formula:
Al2O3
CAS Number:
Molecular Weight:
101.96
EC Number:
MDL number:
UNSPSC Code:
12352311
eCl@ss:
38120402
PubChem Substance ID:
NACRES:
SB.52
grade
Brockmann I
activated
standard grade
Quality Level
form
powder
manufacturer/tradename
CAMAG 507-C-I
technique(s)
ion chromatography: suitable
impurities
<0.03% Fe2O3
<0.03% SiO2
<0.4% Na2O
particle size
40-160 μm
pore size
58 Å pore size
pH
7.0±0.5 ( in H2O)
mp
2040 °C (lit.)
SMILES string
O=[Al]O[Al]=O
InChI
1S/2Al.3O
InChI key
TWNQGVIAIRXVLR-UHFFFAOYSA-N
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General description
The mechanism of formation of protective scales of α-Al2O3 on surfaces of binary M-Al (M = Fe, Ni or Co) alloys at high temperatures has been studied. Activated aluminum oxides having different acidities and water concentrations (having Brockmann activity I-V) can easily detect various types of water (namely free water, pore water, and bound water) on the aluminum oxide present in soils.
Application
Aluminum oxide (Alumina, Al2O3) has been used in the preparation of one-step self-assembled double-helices of multiwalled carbon nanotubes (MWCNT) arrays (composed of Fe nanoparticles bound to SiOx micro-particles).
Aluminum oxide (neutral) has been used in the preparation of alumina supported silver (Ag/Al2O3) catalyst suitable for selective catalytic reduction of nitrogen oxides (NOx) by hydrocarbons (HC-SCR).
Packaging
Brockmann aluminum oxides are suitable for column chromatography and adsorptive filtration.
wgk_germany
nwg
flash_point_f
Not applicable
flash_point_c
Not applicable
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