Registration Dossier
Registration Dossier
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EC number: 204-586-0 | CAS number: 122-96-3
Biodegradation in water: screening tests
Administrative data
- Endpoint:
- biodegradation in water: inherent biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 012
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 302 B (Inherent biodegradability: Zahn-Wellens/EMPA Test)
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- Piperazine-1,4-diethanol
- EC Number:
- 204-586-0
- EC Name:
- Piperazine-1,4-diethanol
- Cas Number:
- 122-96-3
- Molecular formula:
- C8H18N2O2
- IUPAC Name:
- 1,4-Bis(2-hydroxyethyl)piperazine
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic (adaptation not specified)
- Duration of test (contact time):
- 28 d
Initial test substance concentration
- Initial conc.:
- 100 mg/L
- Based on:
- other: Carbon
Reference substance
- Reference substance:
- diethylene glycol
Results and discussion
% Degradation
- Key result
- Parameter:
- % degradation (DOC removal)
- Value:
- 5
- Sampling time:
- 28 d
BOD5 / COD results
- Results with reference substance:
- 100% after 14 d
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- not inherently biodegradable
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