Accéder au contenu
Merck
Toutes les photos(1)

Principaux documents

44504

Supelco

Dowex 50W X8 Ion Exchange Resin

hydrogen form, 16-50 mesh, strongly acidic

Se connecterpour consulter vos tarifs contractuels et ceux de votre entreprise/organisme


About This Item

Numéro CAS:
Numéro MDL:
Code UNSPSC :
12000000
Nomenclature NACRES :
NB.21
Le tarif et la disponibilité ne sont pas disponibles actuellement.

Nom du produit

Dowex 50WX8, hydrogen form, strongly acidic, 16-50 mesh

Description

cross-linkage 8%

Niveau de qualité

Forme

beads

Humidité

50-58%

Technique(s)

LPLC: suitable

Matrice

styrene divinylbenzene (gel)

Groupe de la matrice active

sulfonic acid functional group

Taille des particules

16-50 mesh

Capacité

1.1 meq/mL by wetted bed volume

Technique de séparation

cation exchange

Chaîne SMILES 

C(C)c3c(cccc3)C=C.c2(c(cccc2)C=C)C=C.c1(ccccc1)C=C

InChI

1S/C10H12.C10H10.C8H8/c2*1-3-9-7-5-6-8-10(9)4-2;1-2-8-6-4-3-5-7-8/h3,5-8H,1,4H2,2H3;3-8H,1-2H2;2-7H,1H2

Clé InChI

NWUYHJFMYQTDRP-UHFFFAOYSA-N

Vous recherchez des produits similaires ? Visite Guide de comparaison des produits

Description générale

Egalement appelé HCR-W

Application

Dowex 50WX8 (HCR-W) hydrogen form is used:
  • As stripper resin and can be regenerated by 0.25N sulphuric acid when exhausted.[1]
  • As a catalyst.[2]
  • In deionizing supernatant fraction samples for paper chromatography.[3]

Dowex 50WX8 hydrogen form may be used in separation medium for TLC, paper chromatography and LPLC.

Informations légales

Pictogrammes

Exclamation mark

Mention d'avertissement

Warning

Mentions de danger

Conseils de prudence

Classification des risques

Eye Irrit. 2

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

dust mask type N95 (US), Eyeshields, Gloves


Faites votre choix parmi les versions les plus récentes :

Certificats d'analyse (COA)

Lot/Batch Number

Vous ne trouvez pas la bonne version ?

Si vous avez besoin d'une version particulière, vous pouvez rechercher un certificat spécifique par le numéro de lot.

Déjà en possession de ce produit ?

Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.

Consulter la Bibliothèque de documents

Les clients ont également consulté

Novel ion exchange chromatographic method using conductimetric detection.
Small, Hamish, Timothy S. Stevens, and William C. Bauman.
Analytical Chemistry, 47, 1801-1809 (1975)
Hydrogen generation from hydrolysis of sodium borohydride using Ni-Ru nanocomposite as catalysts.
Liu, Cheng-Hong, et al.
International Journal of Hydrogen Energy, 34, 2153-2163 (2009)
Chemical composition and ultrastructure of wild-type and white mutantAspergillus nidulans conidial walls.
Claverie-Martin, Felix, Maria R. Diaz-Torres, and Michael J. Geoghegan.
Current Microbiology, 16, 281-287 (1988)

Questions

1–10 of 14 Questions  
  1. Is this type of resin suitable for separating ammonia gas from air?

    1 answer
    1. This product would not be recommended for separation of ammonia gas from air. Typically, a scrubbing system with a chemical such as dilute sulfuric acid would be used. If an adsorbent is preferred, activated charcoal would be the best recommendation and impregnated activated charcoal is ideal.

      Helpful?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. 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?

  3. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. 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

      Helpful?

  4. What is the particle size and shape of Product 44504?

    1 answer
    1. The mesh size (20-50 mesh) corresponds to a particle size range of approximately 300 to 850 microns. The product is in the form of beads.

      Helpful?

  5. What is the total exchange capacity of the Dowex® 50W X8 resin, Product 44504, in equivalents per Liter (eq/L)?

    1 answer
    1. The exchange capacity is approximately 1.7 eq/L or meq/mL. One equivalent means one mole of ionizable functional group on the resin.

      Helpful?

  6. What are the proper storage conditions for Dowex® 50W X8 resin, Product 44504?

    1 answer
    1. The resins should be stored in a dry cool place. The storage temperature should be kept below 50oC (120oF).Storage temperature below 0oC can cause resin freezing and temperatures below -18oC (0oF) should be avoided. Repeated freeze-thaw can cause damage on the beads. The frozen resin beads should be completely thawed out at room temperature condition before loading and use.

      Helpful?

  7. How can I convert a cation exchange resin from the hydrogen form to the sodium form?

    1 answer
    1. To convert a cation exhcange resin from the hydrogen form to the sodium form, use two to four bed volumes of 0.5-2.0% NaCl or NaOH.

      Helpful?

  8. What is the form of Product 44504, Dowex® 50W X8?

    1 answer
    1. This resin is a strongly acidic cation exchanger, in the H+ ionic form.

      Helpful?

  9. What is a p.a. grade?

    1 answer
    1. Pro analysi (per analysis, or p.a.) grade chemicals are tested to similar - although not identical - standards as are ACS reagents. P.a. grade material are suitable for many routine laboratory applications.

      Helpful?

  10. What is the Department of Transportation shipping information for this product?

    1 answer
    1. Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.

      Helpful?

1–10 of 14 Questions  

Reviews

No rating value

Active Filters

Notre équipe de scientifiques dispose d'une expérience dans tous les secteurs de la recherche, notamment en sciences de la vie, science des matériaux, synthèse chimique, chromatographie, analyse et dans de nombreux autres domaines..

Contacter notre Service technique