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Diss Factsheets
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EC number: 814-970-5 | CAS number: 852620-97-4
- 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
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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:
- 2020-11-26 to 2021-02-19
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 F (Ready Biodegradability: Manometric Respirometry Test)
- GLP compliance:
- yes (incl. QA statement)
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic (adaptation not specified)
- Details on inoculum:
- On 03/12/2020, activated sludge was sampled near the exit of the aeration tank at Valence’s waste water treatment plant receiving predominantly domestic sewage. The sludge was settled and the liquid supernatant discarded. The concentrated sludge was then suspended in the mineral solution. These two steps were repeated twice.
- Duration of test (contact time):
- 28 d
- Initial conc.:
- 100 mg/L
- Based on:
- ThOD
- Parameter followed for biodegradation estimation:
- O2 consumption
- Key result
- Parameter:
- % degradation (DOC removal)
- Value:
- 0
- Sampling time:
- 28 d
- Details on results:
- No lag phase and biodegradation were highlighted.
10-d window is not respected
Percentage of biodegradation at 28 days: 0 % - Results with reference substance:
- Based on a biodegradation rate higher than 70% in 14 days (experimental value: 79.6 and 78.0 % in 1 day) in the reference control, the test was carried out under good conditions.
- Validity criteria fulfilled:
- yes
- Interpretation of results:
- under test conditions no biodegradation observed
- Conclusions:
- Under the conditions of an experimental study performed according to the OECD 301F guideline under GLP conditions, the test item was found to be not readily biodegradable.
- Executive summary:
The objective of this study was to assess the aerobic ready biodegradability of the test item N-PropylN-methylpyrrolidinium Bis(fluorosulfonyl)imide by measurement of manometric respirometry over a 28- day period according to the OECD 301F guideline (July 1992).
The test item, at 100 mg.L-1 , as the sole source of carbon and energy, was incubated in a buffer-mineral salts medium which was inoculated with a mixed population of micro-organisms. The consumption of oxygen was determined from the change in pressure in the apparatus. Evolved carbon dioxide was absorbed in a solution of sodium hydroxide. The amount of oxygen taken up by the microbial population during biodegradation of the test substance (corrected for uptake by blank inoculum, run in parallel) was expressed as a percentage of ThOD.
The study is valid since:
Based on a biodegradation rate higher than 60% in 14 days (experimental value: 67.3 and 69.5 % in 3 days) in the reference control, the test was carried out under good conditions. At the end of the test, measurements of Biological Oxygen Demand (BOD) in two replicates of the test item solution did not show a difference of more than 20% (experimental value: 0 %). The oxygen uptake of the control was not greater than 60 mg.L-1 in 28 days (experimental value: 15.7 and 18.6 mg O2.L-1 ). Based on a biodegradation rate higher than 25% in 14 days (experimental value: 39.6 % in 3 days) in the toxicity control, the test item was not toxic to micro-organisms. No significant Biological Oxygen Demand of the abiotic control over the test period was highlighted. There was therefore no release of oxygen. The degradation of test item was not abiotic. The pH value were in the range 6-8.5 in the test vessel.
Results are the following:
N-Propyl-N-methylpyrrolidinium Bis(fluorosulfonyl)imide
Percentage of biodegradation at 28 days
0 %
Conclusion
Not ready biodegradable
Reference
Description of key information
Under the conditions of an experimental study performed according to the OECD 301F guideline under GLP conditions, the test item was found to be not readily biodegradable.
Key value for chemical safety assessment
- Biodegradation in water:
- not biodegradable
- Type of water:
- freshwater
Additional information
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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