Registration Dossier
Registration Dossier
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EC number: 205-438-8 | CAS number: 140-88-5
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Ethyl acrylate is readily biodegradable according to OECD criteria.
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
Additional information
A closed bottle biodegradation assay was conducted according to OECD Guideline 301 D. The inoculum was secondary effluent from predominantly domestic sewage. After dosing with 3 mg test material/L, the bottles were sealed and incubated in the dark at 20 °C for 28 days. Ethyl acrylate attained 50 - 60% degradation (expressed as BOD/ThOD) within 28 days (BAMM, 1996). In a CO2- Headspace test according to ISO 14593 which is identical to OECD 310 (Ready Biodegradability - CO2 in sealed vessels) ethyl acrylate was readily biodegradable. The inoculum used in this study was domestic activated sludge from a laboratory wastewater treatment plant fed with municipal sewage. The assay was conducted at a test substance concentration of 33 mg/L equivalent to 20 mg/L TOC at 22 °C in the dark. After 28 days a biodegradation degree of 90 - 100% (TIC/ThIC) was determined (BASF AG, 2005).
Thus, Ethyl acrylate is readily biodegradable according to OECD criteria.
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