Registration Dossier
Registration Dossier
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EC number: 202-090-9 | CAS number: 91-68-9
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: screening test, other
- Remarks:
- Inherent biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
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 substance name:
- 3-diethylaminophenol
- EC Number:
- 202-090-9
- EC Name:
- 3-diethylaminophenol
- Cas Number:
- 91-68-9
- Molecular formula:
- C10H15NO
- IUPAC Name:
- 3-(diethylamino)phenol
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, industrial (adaptation not specified)
- Duration of test (contact time):
- 26 d
Initial test substance concentration
- Initial conc.:
- 150 mg/L
- Based on:
- DOC
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- DOC removal
- Details on study design:
- TEST CONDITIONS
- Composition of medium: accordig to OECD 302B
- Test temperature: room temperature
- Aeration of dilution water: no
- Suspended solids concentration: 150 mg DOC
- Continuous darkness: yes/no
TEST SYSTEM
- Number of culture flasks/concentration: 2
Results and discussion
% Degradationopen allclose all
- Parameter:
- % degradation (DOC removal)
- Value:
- ca. 15
- Sampling time:
- 0 d
- Parameter:
- % degradation (DOC removal)
- Value:
- ca. 55
- Sampling time:
- 3 d
- Parameter:
- % degradation (DOC removal)
- Value:
- ca. 60
- Sampling time:
- 10 d
- Parameter:
- % degradation (DOC removal)
- Value:
- ca. 95
- Sampling time:
- 21 d
- Parameter:
- % degradation (DOC removal)
- Value:
- ca. 95
- Sampling time:
- 26 d
Applicant's summary and conclusion
- Interpretation of results:
- inherently biodegradable
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