Registration Dossier
Registration Dossier
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EC number: 231-955-3 | CAS number: 7782-42-5
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- no data: aquatic toxicity unlikely
Marine water
- Hazard assessment conclusion:
- no data: aquatic toxicity unlikely
STP
- Hazard assessment conclusion:
- no hazard identified
Sediment (freshwater)
- Hazard assessment conclusion:
- no hazard identified
Sediment (marine water)
- Hazard assessment conclusion:
- no hazard identified
Hazard for air
Air
- Hazard assessment conclusion:
- no hazard identified
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- no hazard identified
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential to cause toxic effects if accumulated (in higher organisms) via the food chain
Additional information
The substance graphite is expected to be not bioavailable. This assumption is based firstly on its negligible solubility in water and in organic solvents and secondly on its molecular size, making crossing biological membranes unlikely. Furthermore, the crystal modification graphite is the thermodynamic most stable modification of the element carbon.
Therefore, potential toxic effects are expected to be triggered by graphite's impurities, which consist mainly of aluminium silicates such as muscovite and iron oxide but not by the substance graphite itself. In the environment, the impurities of graphite are present unlimited, hence derivation of PNEC values for graphite appears scientifically not to be justified.
Conclusion on classification
A classification of the substance graphite is scientifically not justified.
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