The cation exchange capacity (CEC) of 4A molecular sieves is generally low, as these materials are primarily designed for adsorption and separation processes rather than for ion exchange. Typically, the CEC for 4A molecular sieves is around 0.1 to 0.5 meq/g. This capacity may vary depending on the specific formulation and conditions of the molecular sieve and in this case, it is not a tested parameter.
688363
Molecular sieves, 4 Å
powder, activated, −325 mesh particle size
Sinónimos:
SYLOSIV® A4, Sodium Alumino-Silicate
Iniciar sesiónpara Ver la Fijación de precios por contrato y de la organización
About This Item
Fórmula lineal:
Na12[(AlO2)12(SiO2)12] · xH2O
Número de CAS:
Número MDL:
Código UNSPSC:
23201100
eCl@ss:
32110204
NACRES:
NA.21
En este momento no podemos mostrarle ni los precios ni la disponibilidad
Productos recomendados
¿Está buscando productos similares? Visita Guía de comparación de productos
Categorías relacionadas
Descripción general
Molecular sieves are made up of three dimensional interconnecting networks of silica and alumina tetrahedral. These crystalline metal aluminosilicates have uniform cavities to selectively adsorb specific size molecules. A 4A molecular sieve has an effective pore size of 4Å.
Aplicación
Molecules with an effective diameter of 4 Å, including H2O, H2S, CO2, SO2, C2H4 and C3H6 are adsorbed.
Información legal
SYLOSIV is a registered trademark of W.R. Grace & Co.-Conn.
Código de clase de almacenamiento
11 - 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)
Lot/Batch Number
¿No ve la versión correcta?
Si necesita una versión concreta, puede buscar un certificado específico por el número de lote.
¿Ya tiene este producto?
Encuentre la documentación para los productos que ha comprado recientemente en la Biblioteca de documentos.
Los clientes también vieron
-
What is the CEC for this zeolite? specifically for Ca2+ and Mg2+?
1 answer-
Helpful?
-
-
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
Helpful?
-
-
How can I determine the shelf life / expiration / retest date of this product?
1 answer-
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.pdfHelpful?
-
-
Hi, I am planning to buy Molecular sieves, 4 Å, product number 688363. As the product information says that this one is activated. Does this mean I can use it without any treatment to remove my solvent water?
1 answer-
Yes, this item is a ready-to-use product. No treatment is required before use.
Helpful?
-
-
what is the effective protocol to use molecular sieve and recycle
1 answer-
Please see the link below for general information, including regeneration, for molecular sieves:
https://www.sigmaaldrich.com/technical-documents/technical-article/chemistry-and-synthesis/reaction-design-and-optimization/molecular-sievesHelpful?
-
Active Filters
Nuestro equipo de científicos tiene experiencia en todas las áreas de investigación: Ciencias de la vida, Ciencia de los materiales, Síntesis química, Cromatografía, Analítica y muchas otras.
Póngase en contacto con el Servicio técnico
