Registration Dossier
Registration Dossier
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EC number: 203-372-4 | CAS number: 106-20-7
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
3-h EC10 = 18 mg/L (95% CL = 7.9 to 41.8 mg/L; OECD 209; domestic activated sludge; BASF SE, 2012; report no. 08G0454/11G167)
Key value for chemical safety assessment
- EC50 for microorganisms:
- 89 mg/L
- EC10 or NOEC for microorganisms:
- 18 mg/L
Additional information
In a short-term respiration inhibition test according to OECD 209 using activated sludge from a wwtp treating predominantly domestic sewage, the toxic effect of bis(2 -ethylhexyl)amine was studied. The 3 -h EC10 was determined to be 18 mg/L, while the 3 -h EC50 was 89 mg/L (BASF SE, 2012, report no. 08G0454/11G167).
In a short-term respiration inhibition test using activated sludge from a wwtp treating industrial wastewater, the EC20 was greater than 100 mg/L (BASF AG, 1983).
Additionally, in an oxygen consumption test using Pseudomonas putida (ROBRA test, Tween 80 was used as a solvent) an EC10 of 1307 mg/L was determined (BASF AG, 1989; report no. 10/1890500).
It can be concluded, that the inhibition of the degradation activity of activated sludge is not anticipated after adaptation.
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