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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Description of key information

NOEC (3h) = 180 mg/L for activated sludge (OECD 209)
EC50 (3h) = 513 mg/L for activated sludge (OECD 209)

Key value for chemical safety assessment

EC50 for microorganisms:
513 mg/L
EC10 or NOEC for microorganisms:
180 mg/L

Additional information

The toxicity of Sodium methyl cocoyl taurate to aquatic microorganisms was determined according to the principles of OECD 209 (Fiebig, 2012). Test system was activated sludge of a municipal treatment plant. The test was carried out under static conditions with the following test substance concentrations 100, 180, 320, 560 and 1000 mg/L. The respiration rates of the control, reference and test item replicates were measured after a contact time of three hours. The NOEC andEC50 of the test item Sodium methyl cocoyl taurate was determined as 180 mg/L and 513 mg/L, respectively.