Registration Dossier
Registration Dossier
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EC number: 205-568-5 | CAS number: 142-87-0
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Readily biodegradable according to OECD criteria: 92% after 30 days based on O2 demand (OECD 301 D).
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
Additional information
The key, non-GLP study assessing biodegradation of C10AS Na (CAS 142-87-0) was performed according to OECD guideline 301 D (Richterich 2001). Effluent of the sewage treatment plant handling predominantly domestic sewage was used as inoculum. The initial concentrations of the test substance were 2 mg/L and 5 mg/L. Biodegradation of 98% measured as oxygen demand was observed after 30 days at the initial concentration of 2 mg/L and 92% at the concentration of 5 mg/L. The test substance was biodegraded by more than 60% in both cases within five days. Based on these results it can be concluded that C10AS Na (CAS 142-87-0) is readily biodegradable. This result was confirmed by a supporting non-GLP study performed according to OECD 301 E guideline (Sanchez Leal et al. 1991). Biodegradation reached ca. 90% after 8 days of testing.
Based on the above data it can be concluded that C10AS Na (CAS 142-87-0) is readily biodegradable according to OECD criteria.
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