Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

The 48hr EC50 for Daphnia magna was calculated to be >300.82 mg/l based on the effect of the acetate ion.

Key value for chemical safety assessment

Fresh water invertebrates

Fresh water invertebrates
Effect concentration:
300.82 mg/L

Additional information

The studies by Markert (1990) and Kjønnø (2005) are GLP compliant and follow standard guidelines. The test substance is only 50% potassium acetate. The remainder was predominantly water with no components likely to prejudice the study outcome in relation to assessing the activity of potassium acetate. The reported NOEC and LC50 were recalculated in order to report the effect concentrations based on the concentration of the acetate ion. The NOEC and LC50 were adjusted for the molecular weight of the acetate compared to the parent molecule and also the fact that the test substance is only 50% potassium acetate.