Merck
  • 199966
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199966

Sigma-Aldrich

Óxido de alúmina

activated, acidic, Brockmann I

Synonym(s):
Alúmina
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

form

powder

manufacturer/tradename

CAMAG 504-C-I

technique(s)

ion chromatography: suitable

impurities

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

particle size

50-300 mesh

pore size

58 Å pore size

surface area

155 m2/g

pH

4.5±0.5 ( in H2O)

mp

2040 °C (lit.)

anion traces

chloride (Cl-): ≤0.14 (mval/g)

SMILES string

O=[Al]O[Al]=O

InChI

1S/2Al.3O

InChI key

TWNQGVIAIRXVLR-UHFFFAOYSA-N

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Aluminum oxide activated, acidic, Brockmann I

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Aluminum oxide

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Aluminum oxide

Aluminum oxide activated, basic, Brockmann I

Sigma-Aldrich

199443

Aluminum oxide

Aluminum oxide Type WN-6, Neutral, Activity Grade Super I

Sigma-Aldrich

A1522

Aluminum oxide

grade

Brockmann I, activated, standard grade

grade

Brockmann I, activated, standard grade

grade

Brockmann I, activated, standard grade

grade

-

form

powder

form

powder

form

powder

form

powder

manufacturer/tradename

CAMAG 504-C-I

manufacturer/tradename

CAMAG 504-C-I

manufacturer/tradename

CAMAG 5016-A-I

manufacturer/tradename

-

technique(s)

ion chromatography: suitable

technique(s)

-

technique(s)

solid phase extraction (SPE): suitable

technique(s)

-

impurities

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

impurities

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

impurities

<0.03% Fe2O3, <0.4% Na2O

impurities

-

particle size

50-300 mesh

particle size

50-300 mesh

particle size

~150 mesh

particle size

-

General description

Brockmann aluminum oxides are suitable for column chromatography and adsorptive filtration.
The mechanism of formation of protective scales of α-Al2O3 (aluminum oxide) 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) may be 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.
Aluminum oxide (acidic) can be used as an adsorbent for column chromatography. It may be used as an active surface for the acylation of aromatic ethers with carboxylic acids in the presence of trifluoroacetic anhydride under solvent-free conditions.

Storage Class Code

11 - Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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