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Carbosieve Adsorbent

matrix Carbosieve G, 60-80 mesh, bottle of 5 g

EC Number:

Quality Level


powder or granules


bottle of 5 g


LPLC: suitable
gas chromatography (GC): suitable
solid phase extraction (SPE): suitable


Carbosieve G

matrix active group


particle size

60-80 mesh

pore size

~0.02 cm3/g mesoporosity
~0.49 cm3/g microporosity
~0 cm3/g macroporosity
~6-15 Å pore diameter (free fall density)

surface area

~1160 m2/g


~0.27 g/mL (free fall density)

separation technique

reversed phase

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General description

A carbon molecular sieve (CMS) is the porous carbon skeletal framework that remains after pyrolysis of a polymeric precursor. These particles are:
  • Spherical (better packed bed performance than granular particles)
  • Hard and non-friable (pack well, will not break)
  • Highly porous (high surface areas)
  • Used for molecules with an analyte size relative to C2-C5 n-alkanes
  • Hydrophobic (can be used in high humidity environments)

Generally, CMS adsorbents offer greater relative adsorptive strength compared to spherical graphitized polymer carbon (SGPC) and graphitized carbon black (GCB) adsorbents. Our Carbosieve products are a type of CMS adsorbent.
  • Have non-tapered pores
  • Very strong adsorptive strength due to only containing micropores
  • Provide great performance for many small, volatile analytes that most adsorbents have trouble retaining

For more information about any of our specialty carbon adsorbents, please visit

Legal Information

Carbosieve is a trademark of Sigma-Aldrich Co. LLC

Storage Class Code

13 - Non Combustible Solids



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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