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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
PNEC aqua (freshwater)
PNEC value:
6.5 µg/L
Assessment factor:
2
Extrapolation method:
assessment factor

Marine water

Hazard assessment conclusion:
no data: aquatic toxicity unlikely

STP

Hazard assessment conclusion:
no data: aquatic toxicity unlikely

Sediment (freshwater)

Hazard assessment conclusion:
PNEC sediment (freshwater)
PNEC value:
205.7 mg/kg sediment dw
Assessment factor:
1
Extrapolation method:
sensitivity distribution

Sediment (marine water)

Hazard assessment conclusion:
insufficient hazard data available (further information necessary)

Hazard for air

Air

Hazard assessment conclusion:
no hazard identified

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
PNEC soil
PNEC value:
21.1 mg/kg soil dw
Assessment factor:
1
Extrapolation method:
assessment factor

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

Conclusion on classification

The insolubility of reaction mass of heptachromium tricarbide and trichromium dicarbide and the ubiquitous presence of chromium in the environment makes its ecotoxicity very unlikely and also the testing of the environmental degradation and ecotoxicity mainly scientifically unjustified. The lack of endpoint data do not allow the derivation of PNECs.

Due to insolubity,

reaction mass of heptachromium tricarbide and trichromium dicarbide

is not classfiable. The toxicity parameters and PNEC values of soluble Cr(3 +) are orders of magnitude higher than concentrations obtained in the solubility tests for the reaction mass of heptachromium tricarbide and trichromium dicarbide. They are presented in the documentation only for comparison.