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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

The 3h-EC50 for activated sludge was > 687 mg/L and the 3h-EC20 was 439 mg/L in a respiration inhibition test with OECD Test Guideline 209 under GLP (concentration based on active ingredient).

Key value for chemical safety assessment

EC50 for microorganisms:
687 mg/L

Additional information

The toxicity to activated sludge was determined in a respiration inhibition test in accordance with OECD Test Guideline 209. The toxicity of the sodium salt of coco fatty acids 2 -sulfoethyl ester to activated sludge was determined at a contact time of 3 hours, using various concentrations of the test substance. The EC50 was reported as >1000 mg/L of test substance which corresponds with > 687 mg/L based on active ingredient concentration. The EC20 was 639 mg/L based on test material which corresponds with 439 mg/L base on active ingredient concentration. The substance is therefore considered not harmful to activated sludge (Reliability 2).