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.
Toxicity to terrestrial plants
Administrative data
Link to relevant study record(s)
Description of key information
Testing of toxicity to terrestrial plants is not required (see "discussion" below).
Key value for chemical safety assessment
Additional information
Charcoal is highly insoluble in water (see IUCLID section 4.8) and the potential of charcoal to become adsorbed is extremely low (log Koc= 0.661; see IUCLID section 5.4.1). In addition, waiving of terrestrial tests can be justified by the fact that charcoal (from forest burning and forest clearing) is and was used as a mean of fertilisation of soil. Thus a positive effect to soil and its organisms can be assumed instead. The only reason to assume a negative effect would be by indirect effects through substances, elements, metals, polycyclic aromatic hydrocarbons (PAHs) being bound to the charcoal itself ("charcoal contaminations"). These contaminations (either as carry-over from the original source e.g. wood or from the production process e.g. burning) might be toxic to test organisms as soon as they are washed out of the charcoal. As long as these contaminations are low, a risk to organisms of either type can not be assumed. The present data demonstrate that a significant contamination of charcoal with critical contaminants has not to be expected according to GC-MS results from charcoal as such and an organic extract of charcoal, only traces of some volatile organic compounds were detectable at room temperature (see IUCLID section 8 “analytical methods”).
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