Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Endpoint summary

Administrative data

Description of key information

No hazard was identified in the experimental studies with methyl ethyl ketone.

Additional information

The substance has been shown to possess a 96-hour LC50 in freshwater fish of 2973 mg/L, a 48-hour EC50 in Daphnia magna of 308 mg/L, and a 72-hour EC50 in algae of 1220 mg/L.

No toxicity to microorganisms is expected, as the substance is found to be readily biodegradable and the applied test concentrations in the available ready biodegradability study are in the range of concentrations that can be expected in the influent of a sewage treatment plant.

This substance is not considered to be acutely toxic to fish, or aquatic invertebrates, nor is it considered to be toxic to aquatic algae, cyanobacteria, or microorganisms.