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EC number: 240-282-4 | CAS number: 16111-62-9
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
In the CO2 evolution test (modified Sturm test) di-(2-ethylhexyl)peroxydicarbonate is readily biodegradable (although not fulfilling the 10-day window).
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable but failing 10-day window
Additional information
The ready biodegradability of di-(2-ethylhexyl)peroxydicarbonate (containing 25 % isododecane as stabiliser) was evaluated in a 28-day modified Sturm test according OECD guideline 301B at an initial test substance concentration of 10 mg/L TOC. Carbon dioxide evolution was corrected for the isododecane content, whose biodegradability was studied in separate experiments. The 10-day window for degradation of di-(2-ethylhexyl)peroxydicarbonate started on the 7th day. At the end of the 10-day window biodegradation of the test substance totalled 49 %. At the end of the study period biodegradation of the test substance totalled 97 % (after 28 days; value for peroxide without isododecane).
Under the conditions of the CO2 evolution test, di-(2-ethylhexyl)peroxydicarbonate is readily biodegradable.
Di-(2-ethylhexyl)peroxydicarbonate contains isododecane (25 %) as a stabiliser. Isododecane was degraded by 16.7 % within the 28 day test period.
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