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EC number: 413-110-2 | CAS number: 135861-56-2
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
The substance is non-readily biodegradable.
Key value for chemical safety assessment
- Biodegradation in water:
- under test conditions no biodegradation observed
Additional information
Biodegradation test of test substance by micro-organisms:
Conditions of cultivation:
(1) Concentration of test substance: 100 mg/L
(2) Concentration of activated sludge (as the concentration of suspended solid): 30 mg/L
(3) Volume of test solution: 300 mL
(4) Cultivation temperature: 25 ± 1°C
(5) Cultivation duration: 28 days
Measurement and analysis:
(1) Measurement of biochemical oxygen demand (BOD) with a closed system oxygen consumption measuring apparatus.
(2) Determination of test substance by high performance liquid chromatography (HPLC).
Results:
(1) Percentage biodegradation by BOD: 0%, 0%, 0%; average 0%
(2) Percentage biodegradation by HPLC: 5%, 0%, 0%; average 2%
Conclusion:
The test substance was not biodegraded by the micro-organisms under the test conditions.
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