Registration Dossier
Registration Dossier
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EC number: 208-488-9 | CAS number: 530-62-1
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- other: Endpoint from hydrolised substance
- Adequacy of study:
- key study
- Study period:
- 1993
- Reliability:
- 1 (reliable without restriction)
- Justification for type of information:
- substance 530-62-1 hydrolyses
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 003
- Report date:
- 2003
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:
- Imidazole
- EC Number:
- 206-019-2
- EC Name:
- Imidazole
- Cas Number:
- 288-32-4
- Molecular formula:
- C3H4N2
- IUPAC Name:
- 1H-imidazole
- Test material form:
- other: 99%
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic, non-adapted
- Duration of test (contact time):
- 18 d
Results and discussion
% Degradation
- Key result
- Parameter:
- % degradation (DOC removal)
- Value:
- > 90 - < 100
- Sampling time:
- 18 d
- Details on results:
- Concentration: 38 mg/l related to Test substance
20 mg/l related to DOC (Dissolved Organic Carbon)
Contact time: 18 day(s)
Degradation: Result: 90 - 100 % after 18 day(s) readily biodegradable
Kinetic: 3 day(s) < 0 %
5 day(s) 10 %
7 day(s) 96 %
14 day(s) 97 %
18 day(s) 98 %
Control Subst.: Aniline
Kinetic: 1 day(s) 2 %
5 day(s) 96 %
Any other information on results incl. tables
Type: aerobic
Inoculum: activated sludge, domestic
Concentration: 38 mg/l related to Test substance
20 mg/l related to DOC (Dissolved Organic Carbon)
Contact time: 18 day(s)
Degradation: Result: |
90 - 100 % after 18 day(s) readily biodegradable |
||
Kinetic: |
3 day(s) < 0 |
% |
|
|
5 day(s) 10 |
% |
|
|
7 day(s) 96 |
% |
|
|
14 day(s) 97 |
% |
|
|
18 day(s) 98 |
% |
|
Control Subst.: |
Aniline |
|
|
Kinetic: |
1 day(s) 2 |
% |
|
|
5 day(s) 96 |
% |
|
Applicant's summary and conclusion
- Interpretation of results:
- readily biodegradable
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