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267740

Sigma-Aldrich

Aluminum oxide

pore size 58 Å, ~150 mesh

Synonym(s):

Alumina

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About This Item

Linear Formula:
Al2O3
CAS Number:
1344-28-1
Molecular Weight:
101.96
EC Number:
215-691-6
MDL number:
MFCD00003424
UNSPSC Code:
12352311
eCl@ss:
38120402
PubChem Substance ID:
329752883
NACRES:
SB.52

description

weakly acidic

Quality Level

200

form

powder

technique(s)

ion chromatography: suitable

impurities

<0.03% Fe2O3
<0.4% Na2O

particle size

~150 mesh

pore size

58 Å

pH

~6.0 ( in H2O)

mp

2040 °C (lit.)

anion traces

chloride (Cl-): ~0.06 meq/g
silicate (as SiO2): <0.03%

SMILES string

O=[Al]O[Al]=O

InChI

1S/2Al.3O

InChI key

TWNQGVIAIRXVLR-UHFFFAOYSA-N

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Packaging

Brockmann aluminum oxides are suitable for column chromatography and adsorptive filtration.

Storage Class Code

11 - 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’.

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Sigma-Aldrich

544833

Aluminum oxide

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Dehydration of 2-butanol by a sulfated zirconia/γ-alumina mixed metal oxide catalyst inside a gas chromatograph injection port.
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Applied Catalysis A: General, 246(2), 227-235 (2003)
Thermoanalytical studies of water on activated alumina, Brockmann I-V,(acid, neutral, basic) from- 60? to+ 700? C.
Hampson JW and Bleam WF.
Thermochimica Acta, 288(1), 179-189 (1996)
Prescott R and Graham MJ.
Oxidation of Metals, 38(3-4), 233-254 (1992)
Chien-Chih Lin et al.
Nanoscale, 5(17), 8090-8097 (2013-07-25)
We demonstrated a promising route for enhancing temperature sensitivity, improving saturation voltage, and reducing power consumption of the MOS(p) tunneling temperature sensors by introducing ultrathin Al2O3 into the dielectric stacks. Detailed illustrations of the working mechanism and device concept are
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