Registration Dossier

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.