Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
no hazard identified

Marine water

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

Hazard for terrestrial organisms

Hazard for predators

Additional information

The pigment iron cobalt chromite black spinel is environmentally and biologically inert due to the characteristics of the synthetic process (calcination at high temperatures, approximately 1000°C), rendering the substance to be of a unique, stable crystalline structure in which all atoms are tightly bound and not prone to dissolution in environmental and physiological media. The substance can be expected to not have a potential to cross or adsorb to biological membranes. Therefore, reversible or irreversible adverse toxicological effects on aquatic or terrestrial life-forms are not expected, and a PNEC derivation is scientifically not justifiable.

The lack of an ecotoxic potential was demonstrated in an OECD TG 201 test. There were not any loading-dependent inhibiting effects on the growth of Pseudokirchneriella subcapitata at 100 mg/L. There was a certain stimulation of cell growth compared to the controls, possibly due to the introduced trace metals, i.e. nutrients. The EL50 for inhibition of growth rate and yield were estimated to be > 100 mg/L. The NOEL for growth rate and yield amounts to ≥ 100 mgL.These data indicate that the pigment may not be toxic to the trophic level of algae/aquatic plants.

Conclusion on classification

The lack of an ecotoxic potential due to the inertness of iron cobalt chromite black spinel was demonstrated in an algae growth inhibition test (OECD TG 201). The EL50 for inhibition of growth rate and yield were estimated to be > 100 mg/L. The NOEL for growth rate and yield amounts to ≥ 100 mg/L. Further ecotoxicity validation testing is ongoing. Classification should be examined once the data will be generated.