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EC number: 641-132-4 | CAS number: 93240-93-8
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
The inhibition of the degradation activity of activated sludge is not anticipated when introduced in appropriate low concentrations.
Key value for chemical safety assessment
Additional information
To assess the toxicity of TMAEE (CAS 93240-93-8) towards microorganisms, a short-term respiration test according to OECD 209 was conducted under GLP. As inoculum, activated sludge from a domestic wastewater treatment plant was used. The exposure period was 180 minutes. An 180-min EC10 of 340 mg/L was obtained for the inhibition of oxygen consumption, based on nominal test item concentrations (BASF SE, 2020; report no.: 08G0034/19G051). The 180-min EC20 and EC50 values were above the highest test concentration of 1000 mg/L.
Based on the experimental data for TMAEE, it can be concluded that the inhibition of the degradation activity of activated sludge is not anticipated when TMAEE (CAS 93240‑93-8) is introduced in appropriately low concentrations.
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