Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 701-227-4 | CAS number: -
Short-term toxicity to fish
Administrative data
Link to relevant study record(s)
Description of key information
For assessing the aquatic hazard of CdZnS, 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 CdZnS is even much lower than the solubility of Cd from CdTe (>50 times lower solubility of Cd in CdZnS, as compared to solubility in CdTe). The ecotoxicity of CdTe was therefore used as a worst case for the ecotoxicity of CdZnS.
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.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
