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
769290
Óxido de alumínio
powder, ultra dry
Sinônimo(s):
Alumina
Selecione um tamanho
About This Item
Produtos recomendados
Nível de qualidade
Formulário
powder
área da superfície
120-190 m2/g
Impurezas
≤0.5% substances extractable by water
perda
≤1.0% loss on ignition
tamanho de partícula
>0.063, coeff var ≥72%
<0.063 mm, coeff var ≤28%
>2 mm, coeff var ≤2%
pf
2040 °C (lit.)
densidade volumétrica
950‑1100 g/L
traços de ânion
chloride (Cl-): ≤0.015%
sulfate (SO42-): ≤0.05%
traços de cátion
As: ≤0.0005%
Fe: ≤0.02%
cadeia de caracteres SMILES
O=[Al]O[Al]=O
InChI
1S/2Al.3O
chave InChI
TWNQGVIAIRXVLR-UHFFFAOYSA-N
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Categorias relacionadas
Aplicação
Código de classe de armazenamento
13 - Non Combustible Solids
Classe de risco de água (WGK)
nwg
Ponto de fulgor (°F)
Not applicable
Ponto de fulgor (°C)
Not applicable
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How can I determine the shelf life / expiration / retest date of this product?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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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
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