Registration Dossier
Registration Dossier
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EC number: 204-515-3 | CAS number: 122-01-0
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: inherent biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- documentation insufficient for assessment
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 980
- Report date:
- 1980
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 302 B (Inherent biodegradability: Zahn-Wellens/EMPA Test)
Test material
- Reference substance name:
- 4-chlorobenzoyl chloride
- EC Number:
- 204-515-3
- EC Name:
- 4-chlorobenzoyl chloride
- Cas Number:
- 122-01-0
- Molecular formula:
- C7H4Cl2O
- IUPAC Name:
- 4-chlorobenzoyl chloride
- Reference substance name:
- p-Chlorbenzoylchlorid
- IUPAC Name:
- p-Chlorbenzoylchlorid
- Details on test material:
- Test item was used in the hydrolized form.
Constituent 1
Constituent 2
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, industrial (adaptation not specified)
- Duration of test (contact time):
- 15 d
Results and discussion
% Degradationopen allclose all
- Parameter:
- % degradation (DOC removal)
- Value:
- 45
- Sampling time:
- 5 d
- Parameter:
- % degradation (DOC removal)
- Value:
- 60
- Sampling time:
- 10 d
- Parameter:
- % degradation (DOC removal)
- Value:
- > 95
- Sampling time:
- 15 d
Applicant's summary and conclusion
- Interpretation of results:
- inherently biodegradable
- Conclusions:
- Degradation of 4-chlorobenzoyl chloride according to OECD 302 B (Zahn Wellens test) was > 95 % after 15 days.
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