Registration Dossier
Registration Dossier
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EC number: 931-209-3 | CAS number: 1337540-53-0
Biodegradation in water and sediment: simulation tests
Administrative data
Link to relevant study record(s)
Description of key information
Fully saturated TEA-Esterquat is readily biodegradable. Therefore simulation testing in water and sediment is not required. However the structurally related source substance partially unsaturated TEA-Esterquat was investigated in an Aerobic Sewage Treatment Simulation Test. The substance proved to be biodegrable by 84.9 % DOC removal average during 23 days.Key value for chemical safety assessment
- Half-life in freshwater:
- 1.1 d
- at the temperature of:
- 20 °C
- Half-life in freshwater sediment:
- 18 d
- at the temperature of:
- 20 °C
Additional information
No experimental data are available for the target substance fully saturated TEA-Esterquat. However, a simulation test was performed with the source substance partially unsaturated TEA-Esterquat. A justification for read-across is attached to Iuclid section 13.
The degradation of TEA-Esterquat partially unsaturated was investigated in a study conducted according to OECD Guideline 303 A (Simulation Test - Aerobic Sewage Treatment. A: Activated Sludge Units). In laboratory waste water treatment plant, the test substance was biodegraded by 84.9% DOC removal on average during 23 d.
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