Registration Dossier
Registration Dossier
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EC number: 605-350-3 | CAS number: 16397-70-9
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: guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 996
- Report date:
- 1996
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 F (Ready Biodegradability: Manometric Respirometry Test)
- GLP compliance:
- yes
Test material
- Reference substance name:
- p-Nitrobenzoesäure-2-ethylhexylester
- IUPAC Name:
- p-Nitrobenzoesäure-2-ethylhexylester
- Details on test material:
- - Name of test material (as cited in study report): p-Nitrobenzoesäure-2-ethylhexylester
- Molecular formula (if other than submission substance): C15H21NO4
- Molecular weight (if other than submission substance): 279
- Substance type: chemical
- Physical state: liquid
- Analytical purity: approx. 99.9 %
- Lot/batch No.: 3299/95/146 Fr. 4A
- Storage condition of test material: room temperature
- Water solubility: 1.4 mg/L at 25 °C
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic (adaptation not specified)
- Details on inoculum:
- - Source of inoculum/activated sludge (e.g. location, sampling depth, contamination history, procedure): taken from a laboratory STP feed with comunal and synthetic sewage water
- Concentration of sludge: 10 ml - Duration of test (contact time):
- 28 d
Initial test substance concentration
- Initial conc.:
- 100 mg/L
- Based on:
- test mat.
Reference substance
- Reference substance:
- aniline
Results and discussion
% Degradationopen allclose all
- Parameter:
- % degradation (O2 consumption)
- Value:
- < 10
- Sampling time:
- 2 d
- Parameter:
- % degradation (O2 consumption)
- Value:
- 20 - 30
- Sampling time:
- 3 d
- Parameter:
- % degradation (O2 consumption)
- Value:
- 60 - 70
- Sampling time:
- 7 d
- Parameter:
- % degradation (O2 consumption)
- Value:
- 80 - 90
- Sampling time:
- 28 d
Applicant's summary and conclusion
- Interpretation of results:
- readily biodegradable
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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