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
802565
Aquivion® D79-25BS
liquid, dispersion, 25% in water, PFSA eq. wt. 790 g/mole SO3H, contains CF3 polymer chain ends as stabilizer
Sinônimo(s):
Aquivion® SO3H-form, Tetrafluoroethylene-perfluoro(3-oxa-4-pentenesulfonic acid) copolymer, Ethanesulfonic acid
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About This Item
Produtos recomendados
Nível de qualidade
Formulário
dispersion
liquid
Peso eq.
790±20g/mol (SO3H)
contém
CF3 polymer chain ends as stabilizer
composição
25% in water
características do produto alternativo mais ecológico
Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.
sustainability
Greener Alternative Product
concentração
25±1 % (w/w)
densidade
1.14 g/mL
categoria alternativa mais ecológica
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Categorias relacionadas
Descrição geral
Aplicação
Características e benefícios
- Very high concentration of functional groups for strong proton (or Na+, K+, Li+, etc.) conductivity
- High softening point for high temperature operation well above 80 ºC •
- Strong water retention for better fuel cell operation at low-humidity conditions for membranes or catalyst inks that are utilizing this dispersion material
Informações legais
Código de classe de armazenamento
10 - Combustible liquids
Classe de risco de água (WGK)
WGK 3
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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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Can I know the ionic conductivity of Aquivion® D79-25BS? If possible, I would like to know the ionic conductivity at different temperatures.
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Ionic conductivity is not determined during the quality control process for this product.
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