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20330-U

Porapak™ poröses Polymeradsorbens

matrix Porapak Q, 50-80 mesh, bottle of 75 cc

Synonym(e):

Omnifit column, 15 mm x 100 mm

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About This Item

UNSPSC-Code:
23201100
NACRES:
SB.54
Preise und Verfügbarkeit sind derzeit nicht verfügbar.

Form

solid

Verpackung

bottle of 75 cc

Parameter

250 °C temp. limit

Oberflächenbereich

~550 m2/g

Matrix

Porapak Q

Partikelgröße

50-80 mesh

Dichte

~0.34 g/mL (free fall density)

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Allgemeine Beschreibung

Die porösen Porapak-Polymere sind kugelförmige Körner mit einer konstanten Partikelgröße, Porosität und Oberfläche, die analytische Präzision und Messgenauigkeit gewährleisten.

Weitere Informationen über unsere Adsorbenzien finden Sie auf sigma-aldrich.com/adsorbents
Porous polymers are the most suitable adsorbent for applications based on the analysis of gases, acids, amines, organics of low carbon number and water.[1] They are best suited for gas chromatography and are basically copolymers of polydivinylbenzene (DVB) which are very porous in nature ranging from mesoporous to microporous.[2] Porapak™ Q is a porous polymer composed of ethylvinylbenzene and divinylbenzene mostly suitable for the separation of hydrocarbons, organic analytes in water, and oxides of nitrogen.[1]

Anwendung

Porapak™ Q packed in a stainless steel GC column maybe used for oxidation reduction experiments for designing of appropriate surface sites for ruthenium-ceria catalysts supported on graphite by controlled preparation method.[3]

Rechtliche Hinweise

PoraPak is a trademark of Waters

Lagerklassenschlüssel

11 - Combustible Solids

WGK

WGK 3

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Persönliche Schutzausrüstung

Eyeshields, Gloves, type N95 (US)

Hier finden Sie alle aktuellen Versionen:

Analysenzertifikate (COA)

Lot/Batch Number

It looks like we've run into a problem, but you can still download Certificates of Analysis from our Dokumente section.

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Besitzen Sie dieses Produkt bereits?

In der Dokumentenbibliothek finden Sie die Dokumentation zu den Produkten, die Sie kürzlich erworben haben.

Die Dokumentenbibliothek aufrufen

Modern Practice of Gas Chromatography.
Grob RL and Barry EF.
Modern Practice of Gas Chromatography, 79-83 (2004)
Scientific Bases for the Preparation of Heterogeneous Catalysts.
Jacobs PA
Science, 751-752 (2010)
Poole C.
Gas Chromatography, 127-130 (2012)

Questions

1–6 of 6 Questions  

  1. quale è l'efficienza di adsorbimento di CH4 sulla Porapaq-Q a -50°C?

    1 answer

    1. The adsorption efficiency is not determined for this product.
      Please see the link below for a publication that may provide useful information:
      https://www.sciencedirect.com/science/article/pii/S0021967303000323?via%3Dihub

      Helpful?

  2. 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?

  3. What is Porapak™ Porous Polymer Adsorbent, 20330-U?

    1 answer

    1. Porapak Q is an ethylvinylbenzene and divinylbenzene copolymer bead which is used in packed column gas chromatography for separating light gases and volatiles.

      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 the 50/80 stand for in the product description of Porapak™ Porous Polymer Adsorbent Q, Product 20330-U?

    1 answer

    1. The 50/80 is refering to the mesh size range of the actual Porapak Q particles.  The larger the mesh number the smaller the diameter of the bead.  In this case 50 refers to a diameter of 297 microns and 80 refers to a diameter of 177 microns.  Therefore, the particles in this product will range between 297 and 177 microns.

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