Registration Dossier
Registration Dossier
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EC number: 221-541-0 | CAS number: 3140-73-6
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:
- 17.07.2002 to 19.08.2002
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: reliable source but with deficiencies in documentation
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Report date:
- 2002
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: DIN EN ISO 9888 Zahn-Wellens-Test
- GLP compliance:
- not specified
Test material
- Reference substance name:
- 2-chloro-4,6-dimethoxy-1,3,5-triazine
- EC Number:
- 221-541-0
- EC Name:
- 2-chloro-4,6-dimethoxy-1,3,5-triazine
- Cas Number:
- 3140-73-6
- Molecular formula:
- C5H6ClN3O2
- IUPAC Name:
- 2-chloro-4,6-dimethoxy-1,3,5-triazine
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic (adaptation not specified)
- Duration of test (contact time):
- ca. 33 d
Initial test substance concentrationopen allclose all
- Initial conc.:
- ca. 298 mg/L
- Based on:
- DOC
- Initial conc.:
- ca. 266 mg/L
- Based on:
- DOC
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- DOC removal
Results and discussion
% Degradationopen allclose all
- Parameter:
- % degradation (DOC removal)
- Value:
- ca. 1
- Sampling time:
- 1 d
- Parameter:
- % degradation (DOC removal)
- Value:
- ca. 4
- Sampling time:
- 12 d
- Parameter:
- % degradation (DOC removal)
- Value:
- ca. 11
- Sampling time:
- 22 d
- Parameter:
- % degradation (DOC removal)
- Value:
- ca. 38
- Sampling time:
- 33 d
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- inherently biodegradable, not fulfilling specific criteria
- Conclusions:
- 2-Chloro-4,6-Dimethoxy-1,3,5-Triazin in not readyly biodegradable, however some degradation can be observed.
- Executive summary:
2-Chloro-4,6-Dimethoxy-1,3,5-Triazin in not readyly biodegradable, however some degradation can be observed.
In 33 days there is a degradation of 38%.
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