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EC number: 643-078-7 | CAS number: 87855-59-2
- 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:
- 17 May - 10 August, 2010
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 010
- Report date:
- 2010
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 B (Ready Biodegradability: CO2 Evolution Test)
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- N-[ethenyl(N-ethylacetamido)methylsilyl]-N-ethylacetamide
- EC Number:
- 643-078-7
- Cas Number:
- 87855-59-2
- Molecular formula:
- C11 H22 N2 O2 Si Si(CH3)(CH=CH2)[N(CH2CH3)(C(=O)CH3)]2
- IUPAC Name:
- N-[ethenyl(N-ethylacetamido)methylsilyl]-N-ethylacetamide
- Test material form:
- solid: compact
- Details on test material:
- Test item
Product name:ZMAT Number 4094 103 (supplied as Dow Coming:!> 1-6008 Silane)
Physical Fonn: Liq uid
Color: Amber to brown
Odor: Amine- like odor
Lot number: 091217
Storage: keep container closed in a room temperature (15-25°C)
All the information above is supplied by Dow Corning Corp.
Constituent 1
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic, non-adapted
- Duration of test (contact time):
- 28 d
Initial test substance concentration
- Initial conc.:
- 10 mg/L
Results and discussion
% Degradation
- Parameter:
- % degradation (CO2 evolution)
- Value:
- 62.66
- St. dev.:
- 2.05
- Sampling time:
- 2 d
Any other information on results incl. tables
During the 24-hour incubation period designed to purge CO2 from test vessels, the temperature ranged from 21.6 to 22.2 qc. The temperature in the environmental chamber was recorded daily during the study and ranged from 21 ,6 to 22.3 Qc. The pH measurements are presented in Table 3. The pH of the test medium was measured to be 7.39 on day -1 and ranged from 7.23 to 7,35 on day 28.
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- readily biodegradable, but failing 10-day window
- Conclusions:
- Based on the rate of C02 evolution during this study, methylvinylbis(n-ethylacetamido)silane can not be classified as "readily biodegradable" by the criteria above since it did not achieve 60% biodegradation within a 10-day window of reaching 10% biodegradation.
However, methylvinylbis(n-ethylacetamido )silane was extensively mineralized to C02 (i.e., 62.66% by day 28) and therefore can be classified as
'ultimately biodegradable'. - Executive summary:
The purpose of the study was to determine the potential for ultimate biodegradation of methylvinylbis(n-ethylacetamido)silane in water. The test was conducted from May 7 to June 5, 2010. The mean cumulative net percent CO2 evolved (percent biodegradation) fro the aqueous medium fortified with methylvinylbis(n-ethylacetamido)silane at 10 mg C/L was 62.66% on Day 28. The toxicity control on Day 14 was 70.33% which indicates that the test substance was not toxic to the inoculum in the test medium. The cumulative net percent CO2 evolved from the sodium benzoate procedural control was 82.78% of theoretical by day 10, thus exceedin the "pass" criteria of the test (reaching 60% or greater CO2 evolution within a 10-day window of reaching 10% biodegradation). This rapid biodegradation of sodium benzoate confirmed the presence of an active microbial population and system integrity. Based on the rate of CO2 evolution during the study, methylvinylbis(n-ethylacetamido)silane can not be classified as "readily biodegradable" by the friteria above since it did not achieve 60% biodegradation within a 10-day sindow of reaching 10% biodegradation. However, methylvinylbis(n-ethylacetamido)silane was extensively mineralized to CO2 (i.e., 62.66% by Day 28) and therefore can be classified as "ultimately biodegradable".
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