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20302

Supelco

Molecular Sieve, 5Å

60-80 mesh, bottle of 50 g

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About This Item

EC 号:
215-685-3
UNSPSC代码:
23201100
eCl@ss:
32110204
价格与库存信息目前不能提供

产品名称

分子筛吸附剂, matrix Molecular Sieve 5A, 60-80 mesh, bottle of 50 g

Agency

suitable for USP/NF nitrogen

表单

solid

包装

bottle of 50 g

基质

Molecular Sieve 5A

粒径

60-80 mesh

孔径

5 Å pore diameter

密度

~0.72 g/mL (free fall density)

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相关类别

一般描述

分子筛是合成生产的沸石（自然存在的铝硅酸盐矿物），其特点是孔隙和尺寸极为一致的内腔。这些晶体材料具有基于氧化硅 (SiO 4 ) 和氧化铝 (AlO 4 ) 多面体的三维结构。多面体通过它们的角连接在一起，产生一个开放的结构，内腔中的分子可以被捕获。这些材料经过设计，可通过特定和均匀尺寸的孔进入内部空腔。

有关我们的吸附剂的更多信息，请访问 sigma-aldrich.com/adsorbents

象形图

Health hazard
GHS08

警示用语：

Warning

危险声明

H373

预防措施声明

P260 - P314 - P501

危险分类

STOT RE 2 Inhalation

靶器官

Lungs

储存分类代码

13 - Non Combustible Solids

WGK

nwg

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

Eyeshields, Gloves, type N95 (US)

历史批次信息供参考:

分析证书(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.

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  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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