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Ecotoxicological information

Toxicity to microorganisms

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Description of key information

EC10 (16 h) > 10000 mg a.i./L (nominal) for Pseudomonas putida.

Key value for chemical safety assessment

EC10 or NOEC for microorganisms:
10 000 mg/L

Additional information

For microorganisms, no studies on the toxic effects of AES (C9 -11, 1 -2.5EO) NH4 (CAS 160901 -27-9) are available. Therefore, a read-across approach from AES (C12 -14, 1 -2.5EO) Na (CAS 68891 -38 -3) and AES (C12 -14, 1 -2.5EO) MIPA (CAS 1187742 -72 -8) was applied as a worst case scenario.

Both studies were performed following the procedures of DIN 38412, part 8 under GLP conditions. Based on growth inhibition EC10 values > 10000 mg a.i./L (nominal) for Pseudomonas putida were observed in both tests after 16 hours (Sasol, 1993, 1999).