Registration Dossier
Registration Dossier
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EC number: 241-029-0 | CAS number: 16958-92-2
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
EC0 (3h) ≥ 13000 mg/L (nominal) for respiration inhibition of activated sludge (equivalent to OECD 209)
Key value for chemical safety assessment
Additional information
One study investigating the toxicity of Bis(tridecyl) adipate (CAS 16958-92-2) to aquatic microorganisms is available. The study was conducted under static conditions using a similar procedure as stated in the OECD guideline 209 (Rabe, 1997). However, no inhibition of nitrification was measured and no analytics of the test substance concentration was performed. Activated sludge obtained from a STP, which predominantly treats domestic sewage, was used as inoculum. The test concentration between 130 and 13000 mg/L were prepared using Tween 80 (substance: vehicle: 10:1) as vehicle. Based on the respiration rate no inhibition was observed in any treatment after a test period of 3 h. Hence, the 3 h-EC0 is determined to be ≥ 13000 mg/L on the basis of the nominal concentration.
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