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Merck

544833

Sigma-Aldrich

Óxido de alúmina

nanopowder, <50 nm particle size (TEM)

Sinónimos:

Alúmina

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About This Item

Fórmula lineal:
Al2O3
Número de CAS:
Peso molecular:
101.96
Número CE:
Número MDL:
Código UNSPSC:
12352303
eCl@ss:
38120402
ID de la sustancia en PubChem:
NACRES:
NA.23
En este momento no podemos mostrarle ni los precios ni la disponibilidad

descripción

gamma phase

Formulario

nanopowder

superficie

>40 m2/g , BET

tamaño de partícula

<50 nm (TEM)

mp

2040 °C (lit.)

cadena SMILES

O=[Al]O[Al]=O

InChI

1S/2Al.3O

Clave InChI

TWNQGVIAIRXVLR-UHFFFAOYSA-N

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Descripción general

Aluminum oxide (Al2O3) based nanopowder is a metal oxide based nanosized material that can be used in a variety of industrial applications. It can be prepared by the hydrolysis of the alkoxide of Al2O3 and calcination of particles in the presence of stabilizing agents.[1][2]

Aplicación

Al2O3 nanopowder can be used for a wide range of applications, such as ceramics,[3] aerospace,[4] wastewater treatment,[5] abrasives,[6] paints,[7] catalysts,[8] and flooring materials.[9]

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

Equipo de protección personal

Eyeshields, Gloves, type N95 (US)


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Certificados de análisis (COA)

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Los clientes también vieron

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Asian Journal of Experimental Sciences, 21(2), 25-32 (2008)
Alumina and zirconia acrylate nanocomposites coatings for wood flooring: Photocalorimetric characterization
Landry V, et al.
Progress in Organic Coatings, 61(1), 76-82 (2008)
Size-controlled synthesis of alumina nanoparticles from aluminum alkoxides
Park YK, et al.
Materials Research Bulletin, 40(9), 1506-1512 (2005)
Colloidal behavior of aluminum oxide nanoparticles as affected by pH and natural organic matter
Ghosh S, et al.
Langmuir, 24(21), 12385-12391 (2008)

Artículos

Composite materials with micron scale reinforcements offer tailored properties for various applications.

Composite materials with micron scale reinforcements offer tailored properties for various applications.

Composite materials with micron scale reinforcements offer tailored properties for various applications.

Composite materials with micron scale reinforcements offer tailored properties for various applications.

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Questions

1–3 of 3 Questions  
  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      Helpful?

  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

      Helpful?

  3. What is the purity of this Al2O3 nanopowder?

    1 answer
    1. The purity of this product is not determined. The presence of Aluminum is confirmed by ICP, but not quantified.
      Please see the link below to review a sample Certificate of Analysis:
      https://www.sigmaaldrich.com/certificates/sapfs/PROD/sap/certificate_pdfs/COFA/Q14/544833-BULKBCCK5282.pdf

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