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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Activated Sludge Respiration Inhibition Test reveal an EC10=3.5 mg/L, EC20=12mg/L, EC50=110 mg/L, thus depending on local consitions and existing concentrations, disturbances in the biodegradation process of activated sludge are possible. 

Key value for chemical safety assessment

EC50 for microorganisms:
110 mg/L
EC10 or NOEC for microorganisms:
3.5 mg/L

Additional information

Activated Sludge Respiration Inhibition Test (OECD 209) conducted with test substance reveal an EC10=3.5 mg/L, EC20=12mg/L, EC50=110 mg/L after 3h incubation. Thus depending on local consitions and existing concentrations, disturbances in the biodegradation process of activated sludge are possible.