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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Short-term toxicity to fish

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Administrative data

Link to relevant study record(s)

Description of key information

In the key-study a LC50-value for fish of 7.1 mg a.s./L could be determined after 96 h of exposure 
Nevertheless that endpoint is not used for PNEC-calculation as PNEC-values were calculated on the basis of a QSAR-model for chronic toxicity.

Key value for chemical safety assessment

Additional information

For alcohol AES (C12-18, 1-2.5EO) Na (CAS 68081-91-4) no acute test on fish is available. Thus, as a worst-case assumption read-across is prepared to a study conducted with alcohol C12 -14 ethoxysulfates. In that test zebrafish (Danio rerio) were exposed to different concentrations of alcohol ethoxysulfates (2EO) (purity of the test substance. 71.5% a.s.) in a flow-through system. The study was conducted according to the guidelines OECD 203 and EG Guideline 92/69 C.1 under GLP-conditions. The resulting LC50 (96 h)-value is reported to be 7.1 mg a.s./L (Scholz, Sasol, 1994).