Registration Dossier
Registration Dossier
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EC number: 201-553-2 | CAS number: 84-69-5
Biodegradation in water: screening tests
Administrative data
- 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:
- other: guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 007
- Report date:
- 2007
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 B (Ready Biodegradability: CO2 Evolution Test)
- Principles of method if other than guideline:
- Screening Test
- GLP compliance:
- no
- Remarks:
- registered for GLP
Test material
- Reference substance name:
- Diisobutyl phthalate
- EC Number:
- 201-553-2
- EC Name:
- Diisobutyl phthalate
- Cas Number:
- 84-69-5
- Molecular formula:
- C16H22O4
- IUPAC Name:
- diisobutyl phthalate
- Reference substance name:
- Diisobutylphtalat (DIBP)
- IUPAC Name:
- Diisobutylphtalat (DIBP)
- Details on test material:
- - batch: 2527407A
Constituent 1
Constituent 2
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic (adaptation not specified)
- Details on inoculum:
- - from wastewater treatment plant of Mannheim, concentration of dry substance 30 mg/L
- Duration of test (contact time):
- 28 d
Initial test substance concentration
- Initial conc.:
- 29 mg/L
- Based on:
- test mat.
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- CO2 evolution
Results and discussion
% Degradationopen allclose all
- Parameter:
- % degradation (CO2 evolution)
- Value:
- 0
- Sampling time:
- 3 d
- Parameter:
- % degradation (CO2 evolution)
- Value:
- 20 - 30
- Sampling time:
- 5 d
- Parameter:
- % degradation (CO2 evolution)
- Value:
- 60 - 70
- Sampling time:
- 14 d
- Parameter:
- % degradation (CO2 evolution)
- Value:
- 70 - 80
- Sampling time:
- 28 d
Applicant's summary and conclusion
- Interpretation of results:
- readily biodegradable
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