Registration Dossier
Registration Dossier
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EC number: 212-028-2 | CAS number: 751-83-7
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Comparable to OECD guideline 301 A.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 997
- Report date:
- 1997
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 A (Ready Biodegradability: DOC Die Away Test)
- GLP compliance:
- yes
Test material
- Reference substance name:
- 751-93-7
- IUPAC Name:
- 751-93-7
- Details on test material:
- - Name of test material (as cited in study report): C15-Salz, kristallin
- Chemical name: (3-Methyl-5-(2,6, 6-trimethyl- 1 -cyclohexen- 1-yl)-2,4-pentadienyl)triphenylphosphoniumsulfat
- Purity: 90 %
- Batch No.: 96/2-315
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic (adaptation not specified)
- Details on inoculum:
- - Inoculum: Activated sludge of laboratory wastewater treatment plant fed with municipal and synthetic sewage
- Concentration of activated sludge: 30 mg/L dry matter - Duration of test (contact time):
- 28 d
Initial test substance concentrationopen allclose all
- Initial conc.:
- 10 mg/L
- Based on:
- DOC
- Initial conc.:
- 16 mg/L
- Based on:
- test mat.
Reference substance
- Reference substance:
- aniline
- Remarks:
- 100 mg/L
Results and discussion
% Degradation
- Parameter:
- % degradation (DOC removal)
- Value:
- 0 - 10
- Sampling time:
- 28 d
Applicant's summary and conclusion
- Interpretation of results:
- other: Poorly biodegradable
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