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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Short-term toxicity to fish

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Administrative data

Link to relevant study record(s)

Description of key information

For assessing the aquatic hazard of CdSSe, reference has been made to ecotoxicity data obtained by standard testing on CdTe, a sparingly soluble  Cd-compound. Transformation dissolution data demonstrate that the solubility of Cd in CdSSe is even much lower than the solubility of Cd from CdTe (>100 times lower solubility of Cd in CdSSe, as compared to solubility in CdTe). The ecotoxicity of CdTe was therefore used as a worst case for the ecotoxicity of CdSSe.
Ecotoxicity of CdTe on Danio rerio was assessed over an exposure period of 96 hours. The LC50 derived was >1 g CdTe/L. This endpoint will be used for classification.

Key value for chemical safety assessment

Fresh water fish

Fresh water fish
Effect concentration:
1 g/L

Additional information

CdTe had no toxic effect at aquatic saturation on freshwater fish. A limit test was performed in the main experiment using only one test concentration at the limit of solubility of the test item in the test medium (100% v/v saturated solution) and one control group. The LC50 results and the LOEC are higher than the solubility level of the test item in the test medium, i.e. >1 g CdTe/L.