Registration Dossier
Registration Dossier
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EC number: 271-363-2 | CAS number: 68551-11-1 A complex combination of products produced by the distillation of products from the hydrogenation of butanal from the hydroformylation of propene. It consists predominantly of organic compounds such as aldehydes, alcohols, esters, ethers and carboxylic acids having carbon numbers in the range of C4-C32 and boiling in the range of approximately 143°C to 282°C (289°F to 540°F).
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Scientifically acceptable guideline study, Non-GLP
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 987
- Report date:
- 1987
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: Test procedures according to EU Directive 79/831/EEC Annex V, part C: Methods for the determination of the ecotoxicity degradation - biodegradation, Manometric respirometry test. This method is comparable to the OECD guideline 301 F.
- GLP compliance:
- no
Test material
Reference
- Name:
- Unnamed
- Type:
- Constituent
- Details on test material:
- - Name of test material (as cited in study report): Oxooel roh 740
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic, non-adapted
- Details on inoculum:
- - Source of inoculum/activated sludge: Municipal activated sludge from laboratory wastewater treatment plants fed with municipal sewage. Concentration of dry substance 30 mg/L.
- Laboratory culture: yes - Duration of test (contact time):
- 28 d
Initial test substance concentrationopen allclose all
- Initial conc.:
- 63 mg/L
- Based on:
- DOC
- Initial conc.:
- 90 mg/L
- Based on:
- test mat.
- Details on study design:
- TEST CONDITIONS
- pH: 6.6 - 7.4
- Test temperature: room temperature
- Other: nominal concentrations from 45-180 mg/L test substance, 32-127 mg/L DOC
TEST SYSTEM
- Culturing apparatus: glass bottles, closed system
- Number of culture flasks/concentration: 2-3
- Method used to create aerobic conditions: on a magnetic stirrer, aerated with CO2-free air
SAMPLING
- Sampling frequency: daily
CONTROL AND BLANK SYSTEM
- Inoculum blank: yes
- Abiotic sterile control: yes
- Toxicity control: yes
Reference substance
- Reference substance:
- aniline
Results and discussion
% Degradation
- Parameter:
- % degradation (O2 consumption)
- Value:
- 100
- Sampling time:
- 28 d
- Details on results:
- - Mean lag time: 3 days
- Time required for 10% degradation: 4 days
- Total degradation at the end of the test: 100 %
Kinetic of test substance (in %):
10.6 after 4 days
57.3 after 9 days
84.6 after 14 days
94.5 after 18 days
> 100 after 23 days
Degradation products: not measured
BOD5 / COD results
- Results with reference substance:
- Kinetic of control substance (in %):
27.5 after 7 days
69.2 after 21 days
Applicant's summary and conclusion
- Interpretation of results:
- readily biodegradable
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