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EC number: 814-965-8 | CAS number: 22094-84-4
- 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
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:
- 21 June to 19 July 2018 (Test period).
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 D (Ready Biodegradability: Closed Bottle Test)
- GLP compliance:
- yes
- Specific details on test material used for the study:
- SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: Materia, Inc., 60 N San Gabriel Blvd, Pasadena, CA 91107, USA; Batch No. RP367_ONB-D
- Expiration date of the lot/batch: 09 August 2018
STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: Ambient (15±10ºC), in the dark
- Stability under test conditions: Not known
- Solubility and stability of the test substance in the solvent/vehicle: Not known
OTHER SPECIFICS:
- Purity / Composition: ONB Isomers (2) 93.26%; TCPD Isomers (3 major) 3.92%; Other individual impurities <0.99 ea% (taken from CoA)
- Appearance (observed): Colourless liquid
- Solubility (specified): <0.001g/L
- Homogeneity (observed): Homogeneous - Oxygen conditions:
- aerobic
- Inoculum or test system:
- sewage, predominantly domestic (adaptation not specified)
- Details on inoculum:
- - Source of inoculum/activated sludge (e.g. location, sampling depth, contamination history, procedure): Cambridge STW, Cowley Road, Cambridge, UK
- Date of collection: 15 June 2018
- Pre-treatment: Filtered (Whatman No. 54)
- Temperature at start of test: 20.8°C
- Concentration of inoculum: 1ml/l - Duration of test (contact time):
- 28 d
- Initial conc.:
- 2 g/L
- Parameter followed for biodegradation estimation:
- O2 consumption
- Details on study design:
- TEST CONDITIONS
- Composition of medium: The dilution water was prepared by the addition of mineral nutrient stock solutions to deionised water, aerating it strongly for 20 minutes, allowing to stand for 24 hours and 22 minutes and adding inoculum.
TEST SYSTEM
- Number of culture flasks/concentration: 0 days (1 replicate), 7 days (2 replicates), 14 days (2 replicates), 21 days (3 replicates), 28 days (3 replicates); Blank and control (1 replicate)
- Measuring equipment: Dissolved oxygen meter
SAMPLING
- Sampling frequency: Dissolved oxygen concentration measurements were made on bottles removed after 7, 14, 21 and 28 days.
- Sampling method: The test material was stated to be soluble in water at ≤0.001g/l, therefore it was treated as insoluble and a stock solution of 0.5004g of 5- Octyl- 2- Norbornene was made to 500ml with deionised water to produce a concentration of 1.002g/l. Replicate standard BOD bottles were filled with the sample stock solution, prepared by addition of the 1.002g/l sample stock solution to mineral medium at 2.0ml/l to give a final test concentration of 2.00g/l. A series of bottles were prepared with only inoculated mineral medium, for the determination of "blank" losses.
- Other: The bottles were incubated in the dark at 20.2-21.3 degrees C for the duration of the test period. - Reference substance:
- other: Sodium acetate
- Remarks:
- Tested at 5.00mg/l by preparing a 1.000g/l stock solution (0.1000g Sodium acetate made to 100ml with deionised water), added to the mineral media at 5ml/l.
- Preliminary study:
- No
- Key result
- Parameter:
- % degradation (O2 consumption)
- Value:
- 108
- Sampling time:
- 28 d
- Key result
- Parameter:
- % degradation (O2 consumption)
- Value:
- 29
- Sampling time:
- 7 d
- Key result
- Parameter:
- % degradation (O2 consumption)
- Value:
- 94
- Sampling time:
- 14 d
- Key result
- Parameter:
- % degradation (O2 consumption)
- Value:
- 107
- Sampling time:
- 21 d
- Details on results:
- Values are for a test concentration of 2.00mg/l and a Theoretical Oxygen Demand (ThOD) of 3115mgO2/g.
- Key result
- Parameter:
- ThOD
- Value:
- 3 115 mg O2/g test mat.
- Results with reference substance:
- % degradation of sodium acetate: 80.
ThOD of sodium acetate 780mgO2/g. - Validity criteria fulfilled:
- yes
- Interpretation of results:
- readily biodegradable
- Conclusions:
- Under the conditions of this study, this substance was found to be readily biodegradable.
Reference
5 -Octyl-2 -Norbornene was found to be insoluble in water. Therefore a surfactant (IGEPAL CA 630) was used to emulsify the sample. The effects of surfactant degradation were taken into account when calculating the degradation of the test material. The OECD 301D guideline requires that the reference material degrades by at least 60% of its ThOD, and that the blank dissolved oxygen loss does not exceed 1.5mg/l after 28 days. Both of these criteria were satisfied for this test; a maximum value of 105% degradation of the sodium acetate was achieved, and the blank DO loss was 1.36mg/l. Degradation values in excess of 100% are considered a result of analytical variation.
The conclusion of this study is therefore that 5 -Octyl-2 -Norbornene is readily biodegradable under the conditions of this test.
Description of key information
5 -Octyl-2 -Norbornene was found to be insoluble in water. Therefore a surfactant (IGEPAL CA 630) was used to emulsify the sample. The effects of surfactant degradation were taken into account when calculating the degradation of the test material. The OECD 301D guideline requires that the reference material degrades by at least 60% of its ThOD, and that the blank dissolved oxygen loss does not exceed 1.5mg/l after 28 days. Both of these criteria were satisfied for this test; a maximum value of 105% degradation of the sodium acetate was achieved, and the blank DO loss was 1.36mg/l. Degradation values in excess of 100% are considered a result of analytical variation.
The conclusion of this study is therefore that 5 -Octyl-2 -Norbornene is readily biodegradable under the conditions of this test.
Key value for chemical safety assessment
- Biodegradation in water:
- readily 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.
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