Registration Dossier
Registration Dossier
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EC number: 480-340-8 | CAS number: -
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Readily biodegradable
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
Additional information
The biodegradation of the substance was assessed using an activated sludge for 28 days according to the DOC Die-away, OECD Guideline 301 A and EU Method C.4 -A. A nominal concentration of 40 mg/l DOC of the substance was tested while a reference compound run in parallel to check the activity of inocolum. Abiotic, adsorption and toxicity control were also evaluated. Degradation was followed over 28 days, but ended on the 19th day as the substance was completely mineralised, by determining the removal of DOC as the difference between total carbon (TC) and inorganic carbon (IC). The degree of biodegradation was calculated by expressing the concentration of DOC removed (corrected for that in the blank inoculum control) as a percentage of the concentration initially present.
Ready biodegradation (test substance, 40 mg/l) = 100.3 % and ready biodegradation (reference substance, 40 mg/l) = 100.2 %, after 19 days.
The substance is readily biodegradable.
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