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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

In a 3-hr acute toxicity study sewage sludge  microorganisms were exposed to the test item at nominal concentrations of 0, 12.3, 37, 111, 333 and 1000 mg/L in accordance with OECD 209. The EC50 value based on respiration rate after was 100 mg/L (95 % confidence limits 71.4 - 153.7 mg/L) after a 3 h contact time. The EC10 was determined as 1.1mg/L. This toxicity study is classified as acceptable and satisfies the guideline requirements for OECD 209 toxicity study.

Key value for chemical safety assessment

EC50 for microorganisms:
100 mg/L

Additional information