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EC number: 943-359-7 | CAS number: 2149581-44-0
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
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:
- 2015
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Guideline Study with detailed documentation
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 015
- Report date:
- 2015
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 B (Ready Biodegradability: CO2 Evolution Test)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method C.4-C (Determination of the "Ready" Biodegradability - Carbon Dioxide Evolution Test)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- MAEEBP
- IUPAC Name:
- MAEEBP
- Details on test material:
- - Name of test material (as cited in study report): MAEEBP- Physical state: colourless liquid- Composition of test material, percentage of components: 4-methacryloyl diethoxy benzophenone 85 area%, impurities 4-hydroxybenzophenone <5%, 4-methacryloyl benzophenone <5%, polymethacrylate <5%- Lot/batch No.: 150301- Expiration date of the lot/batch: Sep. 2015- Storage condition of test material: The test item was stored in the test facility in a closed vessel in the refrigerator (3.9-9.2°C) (exception: 22.- 28. Apr. 2015 storage at room temperature).
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic, non-adapted
- Details on inoculum:
- - Source of inoculum/activated sludge: Activated sludge from a biologic sewage treatment plant of the ESN (Stadtentsorgung Neustadt), Germany- Pre-treatment: The sludge was filtrated, washed with tap water twice, then washed with and re-suspended in test medium. It was then aerated until use.- Concentration of sludge: 4540 mg suspended solids/L (dry matter)
- Duration of test (contact time):
- 29 d
Initial test substance concentration
- Initial conc.:
- 20 mg/L
- Based on:
- DOC
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- CO2 evolution
- Details on study design:
- TEST SYSTEM- Culturing apparatus: 2000 mL-SCHOTT-flasks were used as test vessels, 100 mL scrubber flasks as absorbent vessels. Flask volume 1500 mL- Number of culture flasks/concentration: 2- Method used to create aerobic conditions: The test vessels were filled with medium and inoculum. Then, all flasks were aerated for 72 hours with purified, CO2-free, moistened air to purge the system of CO2.- Measuring equipment: carbon analyser TOC multi N/C 2100S, Analytik JenaSAMPLING- Sampling frequency: on day 0, 2, 4, 7, 9, 11, 14, 18, 23 and 29CONTROL AND BLANK SYSTEM- Inoculum blank: 2 flasks- Reference: 2 flasks- Abiotic sterile control: 1 flask (HgCl2)- Toxicity control: 1 flask - Other: Apparatus blanks, 2 flasks, containing mineral medium only
Reference substance
- Reference substance:
- aniline
Results and discussion
% Degradation
- Parameter:
- % degradation (CO2 evolution)
- Value:
- 43
- Sampling time:
- 28 d
Any other information on results incl. tables
Degradation values after 29 d:
Positive control mean: 86.8%
Test mean: 42.7%
Abiotic control: -1.4%
Toxicity control: 53.7%
10-day-window: day 12 – 22
Degradation at the end of 10-day-window 25 %
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- inherently biodegradable
- Conclusions:
- The test item MAEEBP was tested using a concentration of nominally 20 mg organic carbon/L (corresponding to 28.5 mg MAEEBP/L) in test medium following OECD 301B and EU-Method C.4-C. The test item degraded to 43% within 28 days. Therefore, regardless of the 10-day-window, MAEEBP is not readily biodegradable following OECD 301B/EU C.4-C.
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