Registration Dossier
Registration Dossier
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EC number: 463-070-5 | CAS number: 106966-25-0
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 12.01.-11.02.2005.
- Reliability:
- 1 (reliable without restriction)
Data source
Reference
- Reference Type:
- other: Body responsible for the test
- Title:
- Unnamed
- Year:
- 2 005
- Report date:
- 2005
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- EU Method C.4-E (Determination of the "Ready" Biodegradability - Closed Bottle Test)
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- -
- EC Number:
- 463-070-5
- EC Name:
- -
- Cas Number:
- 106966-25-0
- Molecular formula:
- C7H17N2O2Br
- IUPAC Name:
- 2-(3-methoxy-3-oxopropyl)-1,1,1-trimethylhydrazinium bromide
Constituent 1
Study design
- Inoculum or test system:
- other: The fresh collected wastewater was filtered through paper filter. COD was determinated and wastewater was aerated till using
- Details on inoculum:
- Waste water was from output of treatment plant, filtrated.
Concentration of inoculum in test mixture: 1.8 mL/L - Duration of test (contact time):
- 28 d
Initial test substance concentration
- Initial conc.:
- 200 mg/L
- Based on:
- COD
Reference substance
- Reference substance:
- other: Sodium benzoate
Results and discussion
% Degradation
- Parameter:
- % degradation (test mat. analysis)
- Value:
- 0
- Sampling time:
- 28 d
- Details on results:
- Points of degradation plot (test substance):
1 % degradation after 3 d
1 % degradation after 7 d
1 % degradation after 10 d
0 % degradation after 14 d
0 % degradation after 17 d
0 % degradation after 21 d
0 % degradation after 24 d
0 % degradation after 28 d
BOD5 / COD results
- Results with reference substance:
- Points of degradation plot (reference substance):
60 % degradation after 3 d
75 % degradation after 7 d
79 % degradation after 10 d
79 % degradation after 14 d
76 % degradation after 17 d
80 % degradation after 21 d
82 % degradation after 24 d
83 % degradation after 28 d
Applicant's summary and conclusion
- Interpretation of results:
- other: not readily biodegradable
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