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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

3h-NOEC 640 mg/L (activated sludge, OECD TG 209)

Key value for chemical safety assessment

EC10 or NOEC for microorganisms:
640 mg/L

Additional information

The toxicity of EDTA-MnNa2 to activated sludge was investigated in an activated sludge respiration inhibition test, conducted according to OECD TG 209 under GLP (Geerts, 2010). In this test, no inhibition of the respiration of the activated sludge was measured at the highest concentration tested, i.e. 640 mg/L. EDTA-MnNa2 is therefore considered not harmful to activated sludge.