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
901019
Carbon nanotube, multi-walled
50-90 nm diameter, >95% carbon basis
Sinónimos:
MWCNT, MWNT, Multiwall carbon nanotube
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About This Item
Productos recomendados
descripción
D/G ratio: 0.1 (by Raman spectroscopy)
Real density: 2.1 g/cm^3 (by Pycnometer)
Nivel de calidad
Ensayo
>95% carbon basis
cociente aspecto
>100 , by FE-SEM
superficie
28 m2/g , by N<SUB>2</SUB> adsorption
diámetro
50-90 nm
65 nm (by FE-SEM)
mp
3652-3697 °C (lit.)
densidad
~2.1 g/mL at 25 °C (lit.)
densidad aparente
0.007 g/cm3 (by HCC method)
cadena SMILES
[C]
InChI
1S/C
Clave InChI
OKTJSMMVPCPJKN-UHFFFAOYSA-N
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Descripción general
Aplicación
Due to their high magnetic sensitivity, MWCNT/manganese–zinc ferrite nanocomposites can be used in integrated nanoscale electronic systems.
They can also be used tofabricate sensors for strain-sensing applications because of their highmechanical flexibility and stability.
Características y beneficios
- Excellent conductivity
- Light weight
- Chemical stability
- Large surface area
- High mechanical strength
Nota de preparación
Código de clase de almacenamiento
13 - Non Combustible Solids
Clase de riesgo para el agua (WGK)
WGK 3
Punto de inflamabilidad (°F)
Not applicable
Punto de inflamabilidad (°C)
Not applicable
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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How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
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 mean number of walls in MWCNT?
1 answer-
There are 88 - 100 walls in these multi-walled carbon nanotubes.
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What's the length of these tubes?
1 answer-
The length of this product is typically > 6.5 micron.
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