20273
Carbopack™ Adsorbent
matrix Carbopack™ B, 60-80 mesh, bottle of 10 g
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About This Item
EC Number:
215-609-9
UNSPSC Code:
23201100
NACRES:
NB.24
product line
Carbopack™
Quality Level
form
granular
packaging
bottle of 10 g
technique(s)
LPLC: suitable
surface area
~100 m2/g
matrix
Carbopack™ B
matrix active group
carbon
particle size
60-80 mesh
pore size
~0 cm3/g macroporosity, ~0 cm3/g mesoporosity, ~0 cm3/g microporosity, ~0 Å pore diameter
density
~0.38 g/mL (free fall density)
separation technique
reversed phase
General description
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
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Storage Class
11 - Combustible Solids
wgk
nwg
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type P3 (EN 143) respirator cartridges
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Articles
Synthetic CMS carbons offer tailored adsorbents for specific applications.
Simple and rapid gas-liquid-solid chromatographic analysis of trace concentrations of acetaldehyde in urban air.
Yasuyuki H.
Journal of Chromatography A, 137 (2), 455-460 (1977)
Plant Volatile Analysis.
Linskens HF and Jackson JF.
Modern Methods of Plant Analysis, 19, 54-56 (1997)
R M Anthony et al.
Journal of analytical toxicology, 4(1), 43-45 (1980-01-01)
This report describes a headspace procedure suitable for the gas chromatographic assay of acetaldehyde, methanol, ethanol and various other volatile substances in biological samples. Carbopack B coated with 5% Carbowax 20-M is compared to Carbopack C coated with 0.2% Carbowax
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 20273 | 04061833336427 |