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199966

Sigma-Aldrich

Óxido de alúmina

activated, acidic, Brockmann I

Sinónimos:

Alúmina

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About This Item

Fórmula lineal:
Al2O3
Número de CAS:
1344-28-1
Peso molecular:
101.96
Número CE:
215-691-6
Número MDL:
MFCD00003424
Código UNSPSC:
12352311
eCl@ss:
38120402
ID de la sustancia en PubChem:
329751965
NACRES:
SB.52

grado

Brockmann I
activated
standard grade

Nivel de calidad

200

Agency

suitable for EPA 1613

Formulario

powder

fabricante / nombre comercial

CAMAG 504-C-I

técnicas

ion chromatography: suitable

impurezas

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

tamaño de partícula

50-300 mesh

tamaño de poro

58 Å pore size

pH

4.5±0.5 ( in H2O)

mp

2040 °C (lit.)

trazas de anión

chloride (Cl-): ≤0.14 (mval/g)

cadena SMILES

O=[Al]O[Al]=O

InChI

1S/2Al.3O

Clave InChI

TWNQGVIAIRXVLR-UHFFFAOYSA-N

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Descripción general

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.

Aplicación

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.

Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

nwg

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

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Certificados de análisis (COA)

Lot/Batch Number
BCCL8787
BCCK3646
BCCK9046
BCCG5657
BCCD3970

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A simple, efficient, and selective method for tetrahydropyranylation of alcohols on a solid phase of alumina impregnated with zinc chloride.
Ranu BC and Saha M.
The Journal of Organic Chemistry, 59(26), 8269-8270 (1994)
Efficient Syntheses of (a-Fluoropropargyl) phosphonate Esters.
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The Journal of Organic Chemistry, 61(15), 5159-5164 (1996)
Micron-scale resolution optical tomography of entire mouse brains with confocal light sheet microscopy.
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Journal of Visualized Experiments, 80, e50696-e50696 (2013)
Conduction Characteristics of the Lithium Iodide-Aluminum Oxide Solid Electrolytes.
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Journal of the Electrochemical Society, 120(10), 1289-1292 (1973)
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