10439-U
Carbopack™ Carbon Adsorbent
matrix Carbopack™ X, 120-400 mesh, bottle of 50 g
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product name
Carbopack™ Adsorbent, matrix Carbopack™ X, 120-400 mesh, bottle of 50 g
product line
Carbopack™
form
granular
packaging
bottle of 50 g
technique(s)
LPLC: suitable
surface area
~240 m2/g
matrix
Carbopack™ X
matrix active group
carbon
particle size
120-400 mesh
pore size
~0.62 cm3/g mesoporosity
~0 cm3/g macroporosity
~0 cm3/g microporosity
~100 Å pore diameter
density
~0.39 g/mL (free fall density)
separation technique
reversed phase
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General description
Carbotrap® X has a very high specific surface area and was used for the recovery of low boiling hydrocarbons like 1,3-butadiene and isoprene.
Carbotrap®/Carbopack™ adsorbent can withstand high bake-out temperature without losing the mechanical and chemical integrity. It has a high affinity for isoprene and does not retain significant amounts of water. Furthermore it has a tendency to pulverize if it is packed too tightly.
A graphitized carbon black (GCB) can be non-porous or porous. The graphitization process results in a highly pure surface with great adsorption and desorption (if required) properties. Surface interactions depend solely on dispersion (London) forces. These particles are:
Generally, GCB adsorbents offer weaker relative adsorptive strength compared to carbon molecular sieve (CMS) adsorbents, and similar relative adsorptive strength compared to spherical graphitized polymer carbon (SGPC) adsorbents. Our Carbopack products are a type of GCB adsorbent.
For more information about any of our specialty carbon adsorbents, please visit sigma-aldrich.com/carbon
- Granular
- Friable
- Used for molecules with an analyte size relative to C3-C20+ n-alkanes
- Hydrophobic (can be used in high humidity environments)
Generally, GCB adsorbents offer weaker relative adsorptive strength compared to carbon molecular sieve (CMS) adsorbents, and similar relative adsorptive strength compared to spherical graphitized polymer carbon (SGPC) adsorbents. Our Carbopack products are a type of GCB adsorbent.
- Particles are 40 mesh and smaller
- Use 40/60 mesh to prevent channeling (if observed with a 20/40 mesh Carbotrap® adsorbent)
- Use smaller mesh (60/80, 80/100, etc.) for all other applications
- Use the smallest particle size available as long as the application can handle the pressure drop
For more information about any of our specialty carbon adsorbents, please visit sigma-aldrich.com/carbon
Legal Information
Carbopack is a trademark of Merck KGaA, Darmstadt, Germany
Carbotrap is a registered trademark of Merck KGaA, Darmstadt, Germany
Storage Class Code
11 - Combustible Solids
WGK
nwg
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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Articles
Synthetic CMS carbons offer tailored adsorbents for specific applications.
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