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Diss Factsheets
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EC number: 801-282-5 | CAS number: 1034343-98-0
- 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
Link to relevant study record(s)
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 22 Oct 2019 to 20 Feb 2020
- Reliability:
- 1 (reliable without restriction)
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 D (Ready Biodegradability: Closed Bottle Test)
- Version / remarks:
- not mentioned
- Deviations:
- no
- GLP compliance:
- yes
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- natural water: freshwater
- Remarks:
- Environmental Culture (surface water)
- Details on inoculum:
- - Initial cell/biomass concentration: 200 CFU/mL
- Duration of test (contact time):
- 28 d
- Initial conc.:
- 3.4 mg/L
- Parameter followed for biodegradation estimation:
- O2 consumption
- Details on study design:
- TEST CONDITIONS
- Test temperature: 23 +/- 1C
- pH: 7.2 (begin) – 7.5 (end)
- Continuous darkness: yes
TEST SYSTEM
- Culturing apparatus: One-liter bottles
- Number of culture flasks/concentration: 2 x test item, 2 x control
- Measuring equipment: The bottles were closed with Oxi-Top® measuring heads and the measuring system was activated. - Reference substance:
- acetic acid, sodium salt
- Key result
- Parameter:
- % degradation (O2 consumption)
- Value:
- ca. 0
- Sampling time:
- 28 d
- Parameter:
- COD
- Value:
- 33 mg O2/g test mat.
- Parameter:
- COD
- Value:
- 8.25 mg O2/g test mat.
- Results with reference substance:
- 67.4 % degradation after 28 days.
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- not readily biodegradable
- Conclusions:
- The degradation rate of the test material did not reach 60% within the 10-day window or after 28 days. Therefore, the test item is considered to be not readily biodegradable.
- Executive summary:
Study design
The ready biodegradability of the test material was determined according to OECD TG 301 D for a period of 28 days under GLP requirements.
The test item was directly added to the sample jars by weight with no additional solvent or dispersants. The OECD 301D biodegradation method measures the oxygen consumed from a test solution incorporating a bacterial inoculum and the test item. The chemical oxygen demand (COD) for the test item was determined. Based on COD, percent degradation of the test item was calculated.
Results
The determined biodegradability of the test item was 0% by % COD. The test item did not achieve the requirements for Ready Biodegradability by the OECD 301D standard for degradation of 60% COD within a 10-day window of the test time frame.
Conclusion
The test item is considered to be not readily biodegradable.
Reference
Description of key information
Ready biodegradation, OECD 301D, GLP, not readily biodegradable
Key value for chemical safety assessment
- Biodegradation in water:
- not biodegradable
- Type of water:
- freshwater
Additional information
Ready biodegradability:
The ready biodegradability of the test material was determined according to OECD Guideline 301 D for a period of 28 days under GLP requirements.
The test item was directly added to the sample jars by weight with no additional solvent or dispersants. The OECD 301D biodegradation method measures the oxygen consumed from a test solution incorporating a bacterial inoculum and the test item. The chemical oxygen demand (COD) for the test item was determined. Based on COD, percent degradation of the test item was calculated.
The determined biodegradability of the test item was 0% by % ThCOD. The test item did not achieve the requirements for Ready Biodegradability by the OECD 301D standard for degradation of 60% COD within a 10-day window of the test timeframe.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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