Registration Dossier
Registration Dossier
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EC number: 242-285-6 | CAS number: 18406-41-2
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:
- 19.07.2017 - 01.03.2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
- Report date:
- 2018
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 B (Ready Biodegradability: CO2 Evolution Test)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- 4,4,7,7-tetraethoxy-3,8-dioxa-4,7-disiladecane
- EC Number:
- 240-212-2
- EC Name:
- 4,4,7,7-tetraethoxy-3,8-dioxa-4,7-disiladecane
- Cas Number:
- 16068-37-4
- Molecular formula:
- C14H34O6Si2
- IUPAC Name:
- 4,4,7,7-tetraethoxy-3,8-dioxa-4,7-disiladecane
- Test material form:
- liquid
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, non-adapted
- Details on inoculum:
- Inocolum collected on 24 July 2017 from the aeration tank of the municipal wastewater treatment plant of Mannheim (Germany)
- Duration of test (contact time):
- 28 d
Initial test substance concentration
- Initial conc.:
- 20 mg/L
- Based on:
- TOC
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- CO2 evolution
Reference substance
- Reference substance:
- aniline
Results and discussion
% Degradation
- Key result
- Parameter:
- % degradation (CO2 evolution)
- Value:
- 64
- St. dev.:
- 4
- Sampling time:
- 28 d
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- readily biodegradable, but failing 10-day window
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