Registration Dossier
Registration Dossier
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EC number: - | CAS number: -
Endpoint summary
Administrative data
Description of key information
The submission substance Step 2 catalyst is readily biodegradable (OECD 310, Headspace Test): 71% biodegradation within 28 days based on ThCO2 evolution.
Additional information
A valid ready biodegradability test performed according to OECD 310 (Headspace test) compliant with GLP confirmed the ready biodegradability of Step 2 catalyst. Within 28 days, 71% biodegradation (mean value; Std. Dev. = 6; n=5) was achieved.
The simultaneous presence of 1-octanol and Step 2 catalyst in the toxicity control considerably stimulated biodegradation kinetics and extent (82% after 7 days; 103% after 14 days). It may thus be assumed that upon simultaneous presence of readily biodegradable substances in STPs or in the environment Step 2 catalyst will be degraded even faster than observed in the experiment without any other substance present in addition.
Due to the ready biodegradability of Step 2 catalyst, no higher tier simulation studies on degradation in surface water, sediment and soil were conducted.
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