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Merck
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MX1583D

Supelco

Molecular Sieve, Type 3A

bead size 8-12 mesh

Synonyme(s) :

Molecular Sieve

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About This Item

Code UNSPSC :
23201100
Le tarif et la disponibilité ne sont pas disponibles actuellement.

Forme

beads

Taille des billes

8-12 mesh

Couleur

tan

Conditions d'expédition

ambient

Température de stockage

room temp

Catégories apparentées

Description générale

Molecular Sieve, Type 3A is a synthetic crystalline aluminosilicate (potassium form crystal structure or type A zeolite) with an effective pore diameter of 3 Å. It is used as an effective adsorbent. It adsorbs molecules having a kinetic diameter of less than 3 Å and excludes molecules with a kinetic diameter of greater than 3 Å.[1][2][3]

Application

Molecular Sieve, Type 3A can be used:
  • As a selective adsorbent for the adsorption of water and ammonia.[4]
  • In drying polar liquids such as methanol and ethanol.[2][4]
  • In commercial dehydration of unsaturated hydrocarbon streams, including cracked gas, propylene, butene, and natural gas.[5][6][7]

Remarque sur l'analyse

Color: Tan
Form: Beads
Identification (potassium): To pass test
Mesh size (8-12): 80% min

Pictogrammes

Corrosion
GHS05

Mention d'avertissement

Danger

Mentions de danger

H314

Classification des risques

Eye Dam. 1 - Skin Corr. 1B

Code de la classe de stockage

8B - Non-combustible corrosive hazardous materials

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Certificats d'analyse (COA)

Recherchez un Certificats d'analyse (COA) en saisissant le numéro de lot du produit. Les numéros de lot figurent sur l'étiquette du produit après les mots "Lot" ou "Batch".

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

Consulter la Bibliothèque de documents

Natural gas dehydration by desiccant materials
Farag HAA, et al.
Alexandria Engineering Journal, 50(4), 431-439 (2011)
THE REDUCING EMISSIONS OF GASES WITH GREENHOUSE EFFECT USING THE METALLIC CATALYSTS SUPPORTED. PRODUCTION TECHNOLOGY, PREPARATION, PHYSICAL AND CHEMICAL CHARACTERIZATION.
Constantinescu M and Bucura F
Progress of Cryogenics and Isotopes Separation, 13(2) (2010)
Effect 3A and 5A molecular sieve on alcohol-assisted methanol synthesis from CO2 and H2 over Cu/ZnO catalyst
Boonamnuay T, et al.
International Journal of Hydrogen Energy (2021)
Optimization of manganese reduction in biotreated POME onto 3A molecular sieve and clinoptilolite zeolites
Jami Mohammed S, et al.
Water Environment Research : A Research Publication of the Water Environment Federation, 88(6), 566-576 (2016)
Enrichment of ammonia concentration from aqua-ammonia vapors by using 3A molecular sieve
Chiou Jenq-Shing, et al.
Energy Conversion and Management , 50(10), 2665-2669 (2009)
Afficher tous les articles scientifiques apparentés

Questions

1–4 of 4 Questions  

  1. 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

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  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. Are this 3A molecular sieves food grade?

    1 answer

    1. No, this product is not food-grade. Currently, a food-grade product option is not available.

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  4. Is there a regeneration procedure for these Molecular Sieve dessicants ?

    1 answer

    1. Molecular sieves can be dried in a drying oven above 250°C to a water content of 2-3 g/100 g. The remaining water can be removed at 300-350°C using a vacuum oil pump (10-1-10-3 mbar), whereby, as is usual, a cold trap containing carbon dioxide coolant or liquid air should be connected. Water pumps, due to their high partial water vapor pressure, are completely unsuitable for this purpose. For safety reasons, molecular sieves that have been used to dry solvents should be freed from possible solvent by mixing with water before regeneration. This can be carried out as often as required; the maximum regeneration temperature is 450°C.

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