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
550086
Tungsten(VI) oxide
nanopowder, <100 nm particle size (TEM)
Sinónimos:
Tungstic anhydride
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About This Item
Productos recomendados
Formulario
nanopowder
tamaño de partícula
<100 nm (TEM)
densidad
7.16 g/mL at 25 °C (lit.)
cadena SMILES
O=[W](=O)=O
InChI
1S/3O.W
Clave InChI
ZNOKGRXACCSDPY-UHFFFAOYSA-N
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Categorías relacionadas
Descripción general
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
dust mask type N95 (US), Eyeshields, Gloves
Elija entre una de las versiones más recientes:
Certificados de análisis (COA)
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How can I determine the shelf life / expiration / retest date of this product?
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Helpful?
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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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What is the size distribution for this particles? Can I observe them via AFM?
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Unfortunately, the size distribution of Product 550086 has not been tested. However, 100 nm particles should be visible in AFM.
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Hi, I am interested to purchase these nanoparticles, is it possible to see the TEM images? I need spherical nanoparticles and could not see an indication of the shape. And lastly, are they stored in water? Thank you very much. Best regards
1 answer-
These nanoparticles are generally spherical.
See the TEM image below.
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