Registration Dossier
Registration Dossier
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EC number: 204-623-0 | CAS number: 123-38-6
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:
- guideline study
Data source
Reference
- Reference Type:
- publication
- Title:
- Biodegradation and Bioaccumulation Data of Existing Chemicals Based on the CSCL Japan.
- Author:
- Chemical Inspection & Testing Institute Japan (ed.)
- Year:
- 1 992
- Bibliographic source:
- Published by Japan Chemical Industry Ecology-Toxicology & Information Center, Oct 1992
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 C (Ready Biodegradability: Modified MITI Test (I))
- GLP compliance:
- no
Test material
- Reference substance name:
- Propionaldehyde
- EC Number:
- 204-623-0
- EC Name:
- Propionaldehyde
- Cas Number:
- 123-38-6
- Molecular formula:
- C3H6O
- IUPAC Name:
- propanal
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge (adaptation not specified)
- Details on inoculum:
- Sludge was sampled from several places in Japan. Established and freshly sampled material was mixed and cultured under controlled conditions at the testing facility. Visual and chemical characteristics as well as activity of the sludge were surveyed to ensure that material of sufficient quality was used in the study.
- Duration of test (contact time):
- 28 d
Initial test substance concentration
- Initial conc.:
- 100 mg/L
- Based on:
- test mat.
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- O2 consumption
Reference substance
- Reference substance:
- aniline
Results and discussion
% Degradation
- Parameter:
- % degradation (O2 consumption)
- Value:
- ca. 91 - 97
- Sampling time:
- 28 d
Applicant's summary and conclusion
- Interpretation of results:
- readily biodegradable
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