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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

EC10 > 10 g/L based on growth inhibition

Key value for chemical safety assessment

Additional information

For AES (C12-18, 1-2.5EO) Na (CAS 68081-91-4) no test on microorganisms is available. Thus, as a worst-case assumption, read-across is prepared to a study conducted with alcohol C12 -14 ethoxysulfates. In that GLP-study of Diefenbach (Sasol, 1996) on growth inhibition of Pseudomonas putida according to DIN 38412, part 8 an EC10 and an EC50 -values of > 10 g/L could be determined after approximately 16 h of exposure. This study is defined as key study.

The two additions study available for microorganisms (Stelter, Cognis, 1993 and Berger & Guhl, Cognis, 1998) are regarded as not reliable as test duration and given endpoints based on respiration rate do not meet today standard methods.