Registration Dossier
Registration Dossier
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EC number: 225-102-4 | CAS number: 4659-45-4
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- other information
- Reliability:
- 1 (reliable without restriction)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Report date:
- 2004
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EU Method C.4-D (Determination of the "Ready" Biodegradability - Manometric Respirometry Test)
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 F (Ready Biodegradability: Manometric Respirometry Test)
- Qualifier:
- according to guideline
- Guideline:
- ISO DIS 9408 (Ultimate Aerobic Biodegradability - Method by Determining the Oxygen Demand in a Closed Respirometer)
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- 2,6-dichlorobenzoyl chloride
- EC Number:
- 225-102-4
- EC Name:
- 2,6-dichlorobenzoyl chloride
- Cas Number:
- 4659-45-4
- Molecular formula:
- C7H3Cl3O
- IUPAC Name:
- 2,6-dichlorobenzoyl chloride
- Test material form:
- other: slightly yellowish liquid
- Details on test material:
- Purity: 99.7 %
Constituent 1
Study design
- Inoculum or test system:
- activated sludge (adaptation not specified)
- Details on inoculum:
- Inoculum control: activated sludge at the concentration of 30 mg supendended solids per liter were filled up with test water to a volume of 250 ml.
- Duration of test (contact time):
- 28 d
Initial test substance concentration
- Initial conc.:
- 150 g/L
Reference substance
- Reference substance:
- aniline
Results and discussion
BOD5 / COD results
- Results with reference substance:
- The reference substance was degraded to 76 % of the Theoretical Oxygen Demand (ThODNH4) after 28 days.
Applicant's summary and conclusion
- Conclusions:
- The test substance can not be considered to be readily biodegradable under the the given test conditions.
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