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20302

Supelco

Molecular Sieve, 5Å

60-80 mesh, bottle of 50 g

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About This Item

Número CE:
215-685-3
Código UNSPSC:
23201100
eCl@ss:
32110204
Preço e disponibilidade não estão disponíveis no momento.

Nome do produto

Molecular Sieve Adsorbent, matrix Molecular Sieve 5A, 60-80 mesh, bottle of 50 g

Agency

suitable for USP/NF nitrogen

Formulário

solid

embalagem

bottle of 50 g

Matriz

Molecular Sieve 5A

tamanho de partícula

60-80 mesh

tamanho de poro

5 Å pore diameter

densidade

~0.72 g/mL (free fall density)

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Descrição geral

Molecular sieves are synthetically produced zeolites (naturally occurring aluminosilicate minerals), and are characterized by pores and internal cavities of extremely uniform dimensions. These crystalline materials have three-dimensional structures based on silicon oxide (SiO4) and aluminum oxide (AlO4) polyhedra. The polyhedra are linked by their corners to produce an open structure with internal cavities in which molecules can be trapped. These materials are engineered so that access to the internal cavities is through specific and uniform sized pores.

For more information about any of our adsorbents, please visit sigma-aldrich.com/adsorbents

Pictogramas

Health hazard
GHS08

Palavra indicadora

Warning

Frases de perigo

H373

Declarações de precaução

P260 - P314 - P501

Classificações de perigo

STOT RE 2 Inhalation

Órgãos-alvo

Lungs

Código de classe de armazenamento

13 - Non Combustible Solids

Classe de risco de água (WGK)

nwg

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable

Equipamento de proteção individual

Eyeshields, Gloves, type N95 (US)

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Certificados de análise (COA)

Lot/Batch Number

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Measurement of atmospheric nitrous oxide using a molecular sieve 5A trap and gas chromatography.
Miles LD.
Analytical Chemistry, 43 (8), 1113-1115 (1971)

Questions

1–8 of 8 Questions  

  1. How is Supelco's Molecular Sieve 5A, Product No. 20302, commonly used?

    1 answer

    1. Mol Sieve 5A is commonly packed in columns for the analysis of permanent gases via Gas Chromatography.

      Helpful?

  2. How do you condition Molecular Sieve 5A, Product 20302, when used in a packed column?

    1 answer

    1. Attach the column to your GC injection port, establish a flow rate of at least 25 mL/min carrier gas, purge with carrier gas at room temperature for 30 minutes, increase oven temperature to 225°C at a rate of 4°C/min, and allow the column to condition at 225°C for 8-12 hours. After conditioning, allow the oven to cool to room temperature, turn off the carrier flow and allow the pressure to go to zero. Then reinstall the column into both the injector port and detector port, and establish desired carrier flow rate. The column should then be ready to use.

      Helpful?

  3. Is this product a packed column?

    1 answer

    1. This is packing material only; it is not a column. Some endusers will purchase this bottle of packing and prepare their own packed columns.

      Helpful?

  4. 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?

  5. How can I purchase a column that is packed with this material?

    1 answer

    1. Most packed column are custom made and require that you obtain a quotation. Please contact our Customer & Sales Services group at phone number (800)-247-6628, fax number (800)-447-3044 or email [email protected] for additional information.

      Helpful?

  6. What does 5A refer to in Molecular Sieve 5A, Product 20302?

    1 answer

    1. 5A is a grade of Mol Sieve and refers to a nominal pore size of 5 Angstroms

      Helpful?

  7. What does the 60/80 stand for in the product description?

    1 answer

    1. The 60/80 refers to the mesh size range of the actual particles.  When working with mesh size: the larger the mesh number, the smaller the diameter of the particle.  In this case 60 refers to a diameter of 250 microns and 80 refers to a diameter of 177 microns.  Therefore; the particles in this product with 60/80 will range between 177 microns and 250 microns.

      Helpful?

  8. What is the maximum temperature for this packing?

    1 answer

    1. The maximum temperature for this packing is 400 °C.

      Helpful?

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