Registration Dossier
Registration Dossier
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EC number: 447-830-3 | CAS number: -
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Clarke (2004): The test material attained 28 % degradation after 28 days and therefore cannot be considered to be readily biodegradable under the strict terms and conditions of the test guidelines.
Key value for chemical safety assessment
- Biodegradation in water:
- under test conditions no biodegradation observed
Additional information
The ready biodegradability of the test material was assessed in a CO2 Evolution Test. The test material, at a concentration of 10 mg C/L, was exposed to activated sewage sludge micro-organisms with culture medium in sealed culture vessels in the dark at 21 °C for 28 days. The degradation of the test material was assessed by the determination of carbon dioxide produced. Control solutions with inoculum and the standard material, sodium benzoate, together with a toxicity control were used for validation purposes.
The test was conducted in accordance with the OECD 301B, EU Method C.4-C and EPA OPTS 835.3100 guidelines.
The test material attained 28 % degradation after 28 days and therefore cannot be considered to be readily biodegradable under the strict terms and conditions of the study guidelines.
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