All Photos(1)



Carbosieve Adsorbent

matrix Carbosieve S-III, 60-80 mesh, bottle of 10 g

EC Number:

product line



powder, crystals or granules


bottle of 10 g


400 °C max. temp.


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


Carbosieve S-III

matrix active group


particle size

60-80 mesh

pore size

~0.04 cm3/g mesoporosity
~0.35 cm3/g microporosity
~0 cm3/g macroporosity
~4-11 pore diameter

surface area

~975 m2/g


~0.66 g/mL (free fall density)

separation technique

reversed phase

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

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).


High Purity Carbon Adsorbents for Sample Preparation and Chromatographic Applications

Carbon Molecular sieves (CMS) are a versatile range of adsorbents that can be tailored for specific applications. Supelco® scientists have been synthesizing synthetic CMS carbons for several decades, starting from tailoring of the starting polymers/copolymers, to modifying the final properties of the subsequent CMS carbon.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service