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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Ecotoxicological information

Long-term toxicity to fish

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Administrative data

Link to relevant study record(s)

fish life cycle toxicity
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:

Description of key information

Since Carbon Black is not soluble in water, it is not possible to carry out many standard ecotoxicity tests for this substance. Its low toxicity, requiring high concentrations to be tested in order that toxicity might be detected, and the low pH of some aqueous suspensions makes the testing protocol even more difficult. In all available acute studies, the No Effect Concentrations (NOECs) were equal to the highest test concentrations, usually 1000 mg/L. No signs of toxicity were noted and no differences between surface-treated and non-treated forms are obvious.

Non-nano forms of carbon black share a high similarity with nanoforms of carbon black as regards composition, morphology, physical-chemical characteristics and impurity profiles. The data on acute toxicity to fish does not suggest that changes in size or surface area of the carbon black nanoforms affect toxicity. A similar profile of the non-nano forms is expected following chronic exposure.

Key value for chemical safety assessment

Additional information