Registration Dossier
Registration Dossier
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EC number: - | CAS number: -
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
The biodegradability of the substance was determined using the CO2 evolution method. The substance cannot be considered to be readily biodegradable under the strict terms and conditions of OECD Guideline 301B.
Key value for chemical safety assessment
- Biodegradation in water:
- under test conditions no biodegradation observed
Additional information
One key study (K1) of Roulstone (2014) was available, measuring the biodegradability of the substance following the OECD 301B guideline. The biodegradation of the substance exposed to a microbial inoculum in aerobic, mineral salts medium at an initial test concentration of 10 mg Carbon/L was measured. The inoculum was activated sewage sludge (predominantly domestic). All systems were sampled for CO2 trapped in 0.05 M NaOH on days 0, 2, 6, 8, 10, 14, 21, 28 and 29. The percentage of theoretical CO2 values (or percentage of biodegradation) was 22% on day 29. Therefore, the substance cannot be considered to be readily biodegradable under the strict conditions of OECD Guideline 301B.
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