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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

IC 50 (3 h) >100 mg/L

Key value for chemical safety assessment

EC50 for microorganisms:
100 mg/L

Additional information

The inhibitory effect of the substance on aerobic waste-water bacteria was investigated in a respiration test, according to the OECD Guideline 209 (1984). The oxygen concentration was measured after a contact time of 180 minutes with activated sludge fed with a standard amount of synthetic sewage feed. The test substance showed a slight inhibition (7.5 %) of the respiration rate at a concentration of 100 mg/l and so the IC 50 (3 h) was determined to be >100 mg/l.

In conclusion, as the validity conditions were respected, the substance was found not to be toxic to waste-water bacteria.