Registration Dossier
Registration Dossier
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EC number: 613-099-6 | CAS number: 62889-66-1
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: inherent biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 988
- Report date:
- 1988
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 302 B (Inherent biodegradability: Zahn-Wellens/EMPA Test)
- GLP compliance:
- no
Test material
Reference
- Name:
- Unnamed
- Type:
- Constituent
- Details on test material:
- N-Tridecyldiisopropanolamine
Purity: no data
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, industrial (adaptation not specified)
- Details on inoculum:
- The activated sludge inoculum used in this study originated from an industrial wastewater treatment plant (BASF AG). The concentration of dry substance was 1 g/L.
- Duration of test (contact time):
- 28 d
Initial test substance concentrationopen allclose all
- Initial conc.:
- 59 mg/L
- Based on:
- DOC
- Initial conc.:
- 82 mg/L
- Based on:
- test mat.
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- DOC removal
Results and discussion
% Degradation
- Parameter:
- % degradation (DOC removal)
- Value:
- 10 - 20
- Sampling time:
- 28 d
- Details on results:
- Kinetic of test substance (in %):
= 10 ... 20 after 3 hour(s)
Any other information on results incl. tables
RM-Freetext:
TOC = 722 mg/g
Applicant's summary and conclusion
- Interpretation of results:
- other: poorly eliminated from water
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