20342

Porapak^™ Porous Polymer Adsorbent

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

• UNSPSC Code: 23201100

Properties

• form: solid
• Quality Level: 100
• packaging: bottle of 75 cc
• parameter: 250 °C temp. limit
• technique(s): gas chromatography (GC): suitable
• surface area: ~550 m²/g
• matrix: Porapak QS
• particle size: 50-80 mesh
• density: ~0.34 g/mL (free fall density)

Description

General description

Porapak porous polymers are spherical beads with consistent particle size, porosity, and surface area that help to insure analytical precision and accuracy.

For more information about any of our adsorbents, please visit 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. 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.

Application

Porapak^™ QS treated with 2% phosphoric acid maybe used as column packing for gas chromatographic analysis of volatile fatty acids in rumen fluid.

Footnote

Porapak QS is a silanized version of Porapak Q to reduce surface adsorption.

Legal Information

PoraPak is a trademark of Waters

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Gloves, type N95 (US)