Registration Dossier
Registration Dossier
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EC number: 423-340-5 | CAS number: 162881-26-7 CGI 819
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Test conducted according to EU MethodC.4-C and compliant with GLP.
Data source
Reference
- Reference Type:
- other: Body responsible for the test
- Title:
- Unnamed
- Year:
- 1 997
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- EU Method C.4-C (Determination of the "Ready" Biodegradability - Carbon Dioxide Evolution Test)
- Deviations:
- not specified
- GLP compliance:
- yes
Test material
- Reference substance name:
- Phenyl bis(2,4,6-trimethylbenzoyl)-phosphine oxide
- EC Number:
- 423-340-5
- EC Name:
- Phenyl bis(2,4,6-trimethylbenzoyl)-phosphine oxide
- Cas Number:
- 162881-26-7
- Molecular formula:
- C26H27O3P
- IUPAC Name:
- [phenyl(2,4,6-trimethylbenzoyl)phosphoryl](2,4,6-trimethylphenyl)methanone
- Test material form:
- solid: particulate/powder
- Remarks:
- migrated information: powder
Constituent 1
Study design
- Duration of test (contact time):
- 28 d
Reference substance
- Reference substance:
- other: Sodium benzoate
Results and discussion
% Degradation
- Parameter:
- % degradation (CO2 evolution)
- Value:
- 0
- St. dev.:
- 0
- Sampling time:
- 28 d
- Details on results:
- Points of degradation plot (test substance):
0% degradation after 2 d
0% degradation after 3 d
0% degradation after 4 d
0% degradation after 5 d
0% degradation after 6 d
0% degradation after 7 d
0% degradation after 9 d
0% degradation after 12 d
0% degradation after 16 d
0% degradation after 22 d
0% degradation after 28 d
0% degradation after 29 d
BOD5 / COD results
- Results with reference substance:
- Points of degradation plot (reference substance)
17% degradation after 2 d
33% degradation after 3 d
45% degradation after 4 d
52% degradation after 5 d
61% degradation after 6 d
70% degradation after 7 d
77% degradation after 9 d
84% degradation after 12 d
90% degradation after 16 d
95% degradation after 22 d
98% degradation after 28 d
99% degradation after 29 d
Applicant's summary and conclusion
- Interpretation of results:
- other: not redily biodegradable
- Conclusions:
- The test substance is not readily biodegradable.
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