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Diss Factsheets
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EC number: - | CAS number: -
- 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:
- 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 017
- Report date:
- 2017
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 F (Ready Biodegradability: Manometric Respirometry Test)
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 835.3110 (Ready Biodegradability)
- GLP compliance:
- yes
Test material
- Reference substance name:
- Reaction products of 2-Ethylaniline with heptyl naphthalen-2-ol
- Cas Number:
- 1401000-07-4
- Molecular formula:
- Not applicable (UVCB Substance)
- IUPAC Name:
- Reaction products of 2-Ethylaniline with heptyl naphthalen-2-ol
- Test material form:
- solid
1
- Specific details on test material used for the study:
- Batch number: 80-47-16
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 concentrationopen allclose all
- Initial conc.:
- 100 mg/L
- Based on:
- test mat.
- Initial conc.:
- 87 other: COD/L
- Based on:
- COD
Parameter followed for biodegradation estimationopen allclose all
- Parameter followed for biodegradation estimation:
- O2 consumption
- Parameter followed for biodegradation estimation:
- CO2 evolution
- Details on study design:
- The biodegradation was followed by measuring the oxygen uptake (mg/L) of the test item under defined conditions by the means of a manometric method and calculating from these values the BOD (Biochemical Oxygen Demand).
Reference substance
- Reference substance:
- benzoic acid, sodium salt
Results and discussion
% Degradation
- Parameter:
- % degradation (O2 consumption)
- Remarks:
- Mean value
- Value:
- 5.2
- Sampling time:
- 28 d
BOD5 / COD results
BOD5 / COD
- Parameter:
- COD
- Value:
- 0.87 mg O2/g test mat.
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- under test conditions no biodegradation observed
- Conclusions:
- The test item RED 2735 was found to be not ready and completely biodegradable under the conditions applied in a manometric respirometry test, having showed a maximum biodegradation of 5.2% at the end the test (mean percentage values between two replicates).
No significant degradation was observed in the abiotic control.
The test item showed no inhibitory effects on the microorganism activity at the tested concentration, as demonstrated by the biodegradation percentage in the toxicity control exceeding the 25% pass level after four days of exposure (30.0%). - Executive summary:
A study to evaluate the ready biodegradability of the test item RED 2735, following the “Manometric Respirometry” method, was performed.
The tested concentration was 100 mg/L (corresponding to 87 mg COD/L).
All reported results are related to the nominal concentration of test item,since the test concentrations were not measured during the test.
The biodegradation was followed by measuring the oxygen uptake (mg/L) of the test item under defined conditions by the means of a manometric method and calculating from these values the BOD (Biochemical Oxygen Demand).
The ThODNH3value (Theoretical Oxygen Demand without nitrification process) was calculated to be equal to 1.67 mg O2/mg for reference item, Sodium Benzoate. while COD value (Chemical Oxygen Demand) was assessed to be 0.87 mg O2/mg for the test item.
These values,1.67 mg O2/mg for reference item and 0.87 mg O2/mg for the test item,were used to calculate per % biodegradation.
Nitrate and nitrite concentration was measured at the start and at the test end.
At the start no nitrite nor nitrate were present. At test end no nitrite formation was observed, while nitrate concentration increased.
At test end nitrate concentration in the test item bottles (8.59 mg/L as mean value) was slightly higher than nitrate concentration found in blank bottles (8.04 mg/L as mean value), therefore a limited nitrification related to the test item seemed to occur during the test period (corresponding to 0.628 mg total oxygen equivalent).
The test item, RED 2735, was found to be not ready and completely biodegradable under the conditions applied in a manometric respirometry test, having showed a maximum biodegradation of 5.2% at the end of the test (mean percentage values between two replicates).
No significant degradation was observed in the abiotic control (equal to 0% at the test end).
The toxicity control clearly showed that the test item does not cause inhibitory effect on the microorganisms activity at the tested concentration. Actually, the toxicity control exceeded the 25 % pass level after four days of exposure (30.0%).
The reference item exceeded the biodegradation pass level (60%) on the sixth day (63.5 %), within the range fixed by OECD Guideline (first 14 days).
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