Registration Dossier
Registration Dossier
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EC number: - | CAS number: 2495-39-8
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- ISO 7827 (Evaluation in an Aqueous Medium of the "Ultimate" Aerobic Biodegradability of Organic Compounds - Method by Analysis of Dissolved Organic Carbon (DOC))
- GLP compliance:
- no
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- sewage, domestic (adaptation not specified)
- Details on inoculum:
- - Source of inoculum/activated sludge: The effluent of a domestic sewage treatment plant was used
- Duration of test (contact time):
- 29 d
- Initial conc.:
- 19.5 mg/L
- Based on:
- DOC
- Key result
- Parameter:
- % degradation (DOC removal)
- Value:
- 81
- Sampling time:
- 28 d
- Details on results:
- Kinetic of test substance (in %):
= 10 after 21 days
= 81 after 28 days
= 92 after 29 dyas
= 92 after 29 days - Interpretation of results:
- readily biodegradable
Reference
Description of key information
Readily biodegradable: 81% in 28 days (ISO 7827)
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
Additional information
Sodium prop-2-enesulphonate is classified as readily biodegradable. In a DOC removal test according to ISO 7827 the biodegradation of sodiumprop-2-enesulphonate was investigated [BASF AG, 1989]. After 28 days 81 % degradation was determined.
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