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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Toxicity to microorganisms

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Administrative data

Link to relevant study record(s)

Description of key information

3 hr EC50 respiration inhibition( activated sludge): ca. 10,000 mg/l. 
3 hr EC10 respiration inhibition( activated sludge): ca. 1,800 mg/l.

Key value for chemical safety assessment

EC10 or NOEC for microorganisms:
1 800 mg/L

Additional information

Toxicity to microorganisms has been tested with a sample of activated sludge from a domestic waste water treatment plant over a 3-hour period at concentrations from 1,000 to 10,000 mg/l. At 10,000 mg/l an inhibition of 48.5% was observed. The EC50 is therefore estimated to be ca. 10,000 mg/l (nominal). At 1,800 mg/L an inhibition of 9.9% was observed. The EC10 is therefore estimated to be ca. 1,800 mg/L (nominal).