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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 262-553-6 | CAS number: 60996-20-5
Short-term toxicity to fish
Administrative data
Link to relevant study record(s)
Description of key information
Since no study on short-term toxicity to fish is available for potassium cryolite, the results of its structural analogue multiconstituent aluminium potassium fluoride are used instead.
The 96-h LC50 in zebra fish (Brachydanio rerio) is >10 mg/L.
Key value for chemical safety assessment
Fresh water fish
Fresh water fish
- Effect concentration:
- 10 mg/L
Additional information
Since no short-term toxicity study in fish is available for potassium cryolite, the results from the structural analogue multiconstituent aluminium potassium fluoride are used instead (for details see Read-across justification as attached in section 13). For multiconstituent aluminium potassium fluoride a GLP-compliant OECD 203 guideline study is available for short-term toxicity in zebra fish (Brachydanio rerio). The test was conducted as a limit test at 10 mg/L and the concentrations were analytically verified. At the concentration tested (10 mg/L), no mortality and abnormal behaviour was observed. Therefore, a 96-h LC50 value of >10 mg/L was reported (Solvay Pharmaceuticals, 2010a).
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.
