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EC number: 426-040-2 | CAS number: 25713-60-4 SR-245
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Ready Biodegradability test for FR - 245
Inherent Biodegradability test for FR - 245
Key value for chemical safety assessment
- Biodegradation in water:
- under test conditions no biodegradation observed
Additional information
Ready biodegradation and Inherent biodegradation studies in water were performed for FR-245.
Ready Biodegradation: The tested substance FR-245 (initial concentration = 100 mg/L) was exposed to the activated sludge in a closed-system oxygen consumption measuring apparatus. The biochemical oxygen demand (BOD) was measured over a 28-day period. From the degradability results, based on BOD and residual test substance it was concluded that FR-245 is not readily biodegradable.
Inherent Biodegradation: The tested substance FR-245 (initial concentration = 20 mg/L) was exposed to a composite inoculum consisting of a mixture of activated sludge. FR-245 was found to be not inherently biodegradable since less than 20% of its carbon content was released as CO2 during the test period of 74 days. The total inorganic carbon produced during the test was equal to 4% of the amount of carbon introduced as test substance.
The results from these studies indicate that FR-245 is persistent.
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