Registration Dossier
Registration Dossier
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EC number: 224-638-6 | CAS number: 4433-79-8
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Key value for chemical safety assessment
Additional information
The ready biodegradability of the test item was determined with a non adapted activated sludge in the Manometric Respirometry Test (OECD 301F) for a period of 28 days. The mean biodegradation rate after 28 days was 11 %.
In a second study the biodegradation was investigated using an OECD 301D test system. The Oxygen demand in the 28 day window revealed 21 % of the COD (COD assumed as 100%), so that the substance is to be regarded as partly biodegradable.
Overall, the test item must be regarded as not readily biodegradable in the 10 -d-window and after 28 days. Due to the fact that in one test a degradation rate of 21% was found it can be assumed that the substance can be regarded as inherent primary biodegradable
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