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199443

Sigma-Aldrich

Aluminum oxide

activated, basic, Brockmann I

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Synonym(s):
Alumina
Linear Formula:
Al2O3
CAS Number:
Molecular Weight:
101.96
EC Number:
MDL number:
eCl@ss:
38120402
PubChem Substance ID:
NACRES:
SB.52

grade

Brockmann I
activated
standard grade

Quality Level

Agency

suitable for EPA 1613

form

powder

manufacturer/tradename

CAMAG 5016-A-I

technique(s)

solid phase extraction (SPE): suitable

impurities

<0.03% Fe2O3
<0.4% Na2O

particle size

~150 mesh

pore size

58 Å pore size

pH

9.5±0.5 ( in H2O)

mp

2040 °C (lit.)

anion traces

chloride (Cl-): none detected
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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1 of 4

This Item
199966267740799300
Aluminum oxide activated, basic, Brockmann I

Sigma-Aldrich

199443

Aluminum oxide

Aluminum oxide activated, acidic, Brockmann I

Sigma-Aldrich

199966

Aluminum oxide

Aluminum oxide pore size 58&#160;Å, ~150&#160;mesh

Sigma-Aldrich

267740

Aluminum oxide

Aluminum oxide activated, acidic, Brockmann I, free-flowing, Redi-Dri&#8482;

Sigma-Aldrich

799300

Aluminum oxide

form

powder

form

powder

form

powder

form

powder

manufacturer/tradename

CAMAG 5016-A-I

manufacturer/tradename

CAMAG 504-C-I

manufacturer/tradename

-

manufacturer/tradename

CAMAG 504-C-I

technique(s)

solid phase extraction (SPE): suitable

technique(s)

ion chromatography: suitable

technique(s)

ion chromatography: suitable

technique(s)

-

impurities

<0.03% Fe2O3, <0.4% Na2O

impurities

<0.03% Fe2O3, <0.03% SiO2, <0.4% Na2O

impurities

<0.03% Fe2O3, <0.4% Na2O

impurities

<0.03% Fe2O3, <0.03% SiO2, <0.4% Na2O

particle size

~150 mesh

particle size

50-300 mesh

particle size

~150 mesh

particle size

50-300 mesh

General description

Brockmann aluminum oxides are suitable for column chromatography and adsorptive filtration.
The product is basic activated aluminum oxide (Alumina, Al2O3) having an activity grade Brockman I. 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) has been used for the removal of peroxides from the dehydration solvent (tetrahydrofuran, THF) in a protocol. Protocol involved the high resolution study of fine brain anatomy of fluorescently labeled mouse brains.
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.

Storage Class Code

11 - Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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Micron-scale resolution optical tomography of entire mouse brains with confocal light sheet microscopy.
Silvestri L, et al.
Journal of Visualized Experiments, 80, e50696-e50696 (2013)
Conduction Characteristics of the Lithium Iodide-Aluminum Oxide Solid Electrolytes.
Liang CC.
Journal of the Electrochemical Society, 120(10), 1289-1292 (1973)
Prescott R and Graham MJ.
Oxidation of Metals, 38(3-4), 233-254 (1992)
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)
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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