Merck
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199966

Sigma-Aldrich

Aluminum oxide

activated, acidic, Brockmann I

Sinónimos:
Alumina
Fórmula lineal:
Al2O3
Número de CAS:
Peso molecular:
101.96
Número de EC:
Número MDL:
eCl@ss:
38120402
ID de la sustancia en PubChem:
NACRES:
SB.52

Nivel de calidad

400

grado

Brockmann I
activated
standard grade

formulario

powder

manufacturer/tradename

CAMAG 504-C-I

technique(s)

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

superficie

155 m2/g

pH

4.5±0.5 ( in H2O)

mp

2040 °C (lit.)

trazas de anión

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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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.

Envase

100 g in poly bottle
1 kg in poly bottle
5 kg in poly drum

Código de clase de almacenamiento

11 - Combustible Solids

WGK

nwg

Punto de inflamabilidad F

Not applicable

Punto de inflamabilidad C

Not applicable

Certificado de Análisis

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Certificado de origen

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Más documentos

Quotes and Ordering

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.
Benayoud F, et al.
The Journal of Organic Chemistry, 61(15), 5159-5164 (1996)
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)
Sebastiaan P van Kessel et al.
Nature communications, 10(1), 310-310 (2019-01-20)
Human gut microbiota senses its environment and responds by releasing metabolites, some of which are key regulators of human health and disease. In this study, we characterize gut-associated bacteria in their ability to decarboxylate levodopa to dopamine via tyrosine decarboxylases.

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