Registration Dossier
Registration Dossier
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EC number: 500-156-4 | CAS number: 62722-22-9 1 - 2.5 moles ethoxylated
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:
- 2012
- Reliability:
- 1 (reliable without restriction)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 012
- Report date:
- 2012
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 C (Ready Biodegradability: Modified MITI Test (I))
- GLP compliance:
- yes
Test material
- Reference substance name:
- 2-{2-[(2-ethylhexyl)oxy]ethoxy}ethyl prop-2-enoate
- Cas Number:
- 117646-83-0
- Molecular formula:
- C15H28O4
- IUPAC Name:
- 2-{2-[(2-ethylhexyl)oxy]ethoxy}ethyl prop-2-enoate
- Test material form:
- liquid
- Details on test material:
- Test substance name: MI RAMER M1086
Appearance : Clear liquid
Manufacturing date: 2012-03-29
Supplier:Miwon Specialty Chemical Co., Ltd.
Receipt day: 2012-05-23
Deli very amount: 399.223 g(Gross)
Cas No.:117646-83-0
Lot No.:120329JY1
Purit y: 95.55 %
Expiration date: 2013-03-28 (Manufactured after 1 year)
Storage condition: Room temperature [(15 ~ 25)°C
Constituent 1
Study design
- Inoculum or test system:
- activated sludge, domestic (adaptation not specified)
- Details on inoculum:
- Inoculum used in the biodegradation test was collected from 15 sites in Korea including 7 rivers, 5 domestic sewage treatmeant plants and 3 industrial wastewater treatment plants. Fresh samples collected from these sites were incubated for one month and used in biodegration test.
- Duration of test (contact time):
- 28 d
Initial test substance concentration
- Initial conc.:
- 100 other: 100 ppm (w/v)
Parameter followed for biodegradation estimationopen allclose all
- Parameter followed for biodegradation estimation:
- O2 consumption
- Parameter followed for biodegradation estimation:
- test mat. analysis
Reference substance
- Reference substance:
- aniline
Results and discussion
% Degradationopen allclose all
- Key result
- Parameter:
- % degradation (O2 consumption)
- Value:
- 10.2
- Sampling time:
- 7 d
- Key result
- Parameter:
- % degradation (O2 consumption)
- Value:
- 18.7
- Sampling time:
- 14 d
- Key result
- Parameter:
- % degradation (O2 consumption)
- Value:
- 36.5
- Sampling time:
- 28 d
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- not readily biodegradable
- Conclusions:
- Microbial degradation of MIRAMER M1086 was performed for 28 day following the OECD TG 301C.
The percentage biodegradtions of MIRAMER M1086 observed by BOD meter was 36.5% after 28 days. Therefore the test substance could not be concluded to be readily degradable by microorganisms in the aquatic environment. - Executive summary:
Microbial degradation of MIRAMER M1086 was performed for 28 day following the OECD TG 301C.
The percentage biodegradtions of MIRAMER M1086 observed by BOD meter was 36.5% after 28 days. Therefore the test substance could not be concluded to be readily degradable by microorganisms in the aquatic environment.
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