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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

The LC50 for fish (Oncorhynchus mykiss) is 154 µg Pd L-1

Key value for chemical safety assessment

Additional information

Pd(IV) will not remain in biological and environmental systems due to its inherent instability, ease of reduction to Pd(II) and its ability to reductively form strong complexes with organic nitrogen and sulphur-containing moieties. Therefore, ecotoxicity results are read across from palladium(II) to palladium(IV) substances. For palladium substances, the available ecotoxicity data indicates that substances with a chloro ligand are more toxic than those with no chloro ligand. As this substance has a chloro ligand, it is appropriate to read across ecotoxicity results from diamminedichloropalladium. The LC50 for fish (Oncorhynchus mykiss) determined for diamminedichloropalladium is 154 µg Pd L-1 (Teigeler 2012). The result was determined in a study following OECD 203, with five test concentrations. Test solutions were renewed after 48 hours, and fresh and aged test solutions were analysed. Results were based on geometric mean measured concentrations.