Registration Dossier
Registration Dossier
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EC number: 464-510-9 | CAS number: -
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:
- February-March 2004
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 004
- Report date:
- 2004
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 D (Ready Biodegradability: Closed Bottle Test)
- GLP compliance:
- yes
Test material
- Reference substance name:
- -
- EC Number:
- 464-510-9
- EC Name:
- -
- Cas Number:
- 147768-39-6
- Molecular formula:
- C10H23O3P
- IUPAC Name:
- 3-[(3-hydroxypropyl)(2-methylpropyl)phosphoryl]propan-1-ol
Constituent 1
Study design
- Inoculum or test system:
- sewage, predominantly domestic (adaptation not specified)
- Details on inoculum:
- Loxahatchee River Environmental Control District Wastewater Treatment Plant (Jupiter, FL)
Reference substance
- Reference substance:
- benzoic acid, sodium salt
Results and discussion
% Degradation
- Parameter:
- % degradation (CO2 evolution)
- Value:
- 0
- Sampling time:
- 28 d
- Details on results:
- Points of degradation plot (test substance):
4 % degradation after 7 d
0 % degradation after 10 d
0 % degradation after 14 d
0 % degradation after 21 d
0 % degradation after 28 d
BOD5 / COD results
- Results with reference substance:
- Points of degradation plot (reference substance):
73.7 % degradation after 7 d
79 % degradation after 10 d
75.4 % degradation after 14 d
68.3 % degradation after 21 d
78.4 % degradation after 28 d
Applicant's summary and conclusion
- Interpretation of results:
- not readily biodegradable
- Conclusions:
- The test item is not readily biodegradable when exposed to microorganisms maintained in an aerobic, aqueous mineralized environment. The mean biodegradation of the test substance was 0% after the 28 days and did not meet the test criteria for ready biodegradability (requiring 60% in 28 days)
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