Registration Dossier
Registration Dossier
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EC number: 240-383-3 | CAS number: 16291-96-6 An amorphous form of carbon produced by partially burning or oxidizing wood or other organic matter.
Density
Administrative data
Link to relevant study record(s)
Description of key information
Key value for chemical safety assessment
- Relative density at 20C:
- 2
Additional information
The solid, or skeletal, density of most activated carbons (charcoal) will range between 2.0-2.1 g/cc. However, this would describe a material with essentially no surface area and no adsorptive capacity. For granular materials, a much more practical density is the apparent density (A.D). This density will be significantly lower than the solid density, due to the presence of pores within particles, and void space between particles.
Charcoal
is characterized by its density which can vary between 0.2 and 0.6 t/m3depending
on the density of wood used as raw material. Charcoal produced from
hardwood is heavy and strong, whereas produced from softwood is soft and
light. The coefficient of transformation is about half (example:
eucalyptus with a density of about 0.6 gives charcoal with a density of
around 0.25 to 0.35).
The bulk density of charcoal does not only depend on the apparent
density but also on the size distribution, and is in the range of 180 -
220 kg/m3.
The density of other forms of carbon such as diamond (3.5 g/cc), graphite (2.7 g/cc), and coal (1.5 g/cc) suggest that charcoal contains a substantial amount of air.
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