Registration Dossier
Registration Dossier
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EC number: 500-150-1 | CAS number: 61791-00-2 1 - 2.5 moles ethoxylated
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
EC10(3h) > 1000 mg/L (nominal) for respiration inhibition of activated sludge (OECD 209)
Key value for chemical safety assessment
Additional information
One study is available investigating the toxicity of Fatty acids, tall-oil, ethoxylated (> 1 < 2.5 mol EO) (CAS 61791-00-2) to aquatic microorganisms. The study was performed according to GLP and OECD guideline 209 using domestic non-adapted activated sludge as inocculum (BASF 2017). Concentrations between 62.5 and 1000 mg/ were tested. No respiration inhibition was observed in any treatment compared to the control. Thus, the 3h-EC10 is determined to be > 1000 mg/L based on nominal concentrations.
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