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EC number: 941-637-2 | CAS number: 1384257-92-4
- 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:
- 2013-09-18 to 2013-12-16
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- GLP study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 B (Ready Biodegradability: CO2 Evolution Test)
- Version / remarks:
- adopted 1992-07-17
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Specific details on test material used for the study:
- TEST MATERIAL
- Lot/batch No.of test material: 12/NB/016
- Expiration date of the lot/batch: 2014-10-01
- Purity test date: 2013-10-01
STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: Tightly closed, protected from moisture at room temperature
- Stability under test conditions: stable
- Solubility and stability of the test substance in the solvent/vehicle:6.9 g/L (water solubility) - Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, domestic, non-adapted
- Details on inoculum:
- - Source of inoculum/activated sludge (e.g. location, sampling depth, contamination history, procedure): Municipal sewage treatment plant, 31137 Hildesheim, Germany
- Pretreatment:
The activated sludge was washed twice with chlorine free tap water. After the second washing the settled sludge was resuspended in mineral salts medium and was maintained in an aerobic condition by aeration for 2 hours. Thereafter the sludge was homogenized with a blender. The supernatant was decanted and maintained in an aerobic condition by aeration with CO2 free air until test start. 10 mL/L of this mixture were used to initiate inoculation. - Duration of test (contact time):
- 28 d
- Initial conc.:
- 16 mg/L
- Based on:
- test mat.
- Remarks:
- corresponding to a carbon content (TOC) of 10.6 mg C/L
- Parameter followed for biodegradation estimation:
- CO2 evolution
- Details on study design:
- TEST METHOD
Duration: 28 d
Application: Once at test start
Test vessels: 5000 mL, brown glass
Volume of the test medium : 3000 mL
Test medium: Mineral salts medium acc. to OECD 301 B / CO2 Evolution Test
Test temperature: Nominal 22 ± 2 °C, actual measured 20- 23 °C
Dispersion treatment: Continuous stirring
Aeration: 30 - 100 mL/min
Photoperiod: Low light conditions (brown glass bottles) - Reference substance:
- benzoic acid, sodium salt
- Parameter:
- % degradation (CO2 evolution)
- Value:
- 16
- Sampling time:
- 3 d
- Parameter:
- % degradation (CO2 evolution)
- Value:
- 68
- Sampling time:
- 10 d
- Key result
- Parameter:
- % degradation (CO2 evolution)
- Value:
- 96
- Sampling time:
- 28 d
- Details on results:
- The biodegradation of the test item is shown graphically in Figure 1 in comparison to the readily degradable functional control and the toxicity control. The mean 10 % level (beginning of biodegradation) was reached on day 3. The 60 % pass level was reached within 10 days. The mean biodegradation after 28 days was 96 %.
- Results with reference substance:
To check the activity of the test system, sodium benzoate was used as functional control. The percentage degradation of the functional control reached the pass level of 60 % within 6 days and a biodegradation of 85 % after 28 days. In the toxicity control containing both test and reference item a biodegradation of 25 % was reached after 5 days. After 15 days a biodegradation of 68 % was determined and it came to 84 % after 28 days. The biodegradation of the reference item was not inhibited by the test item in the toxicity control.- Validity criteria fulfilled:
- yes
- Interpretation of results:
- readily biodegradable
- Conclusions:
- Under the test conditions the test item is readily biodegradable within 28 days and complying to the 10-day-window.
- Executive summary:
Under the test conditions the test item is readily biodegradable within 28 days and complying to the 10-day-window.
Reference
Biodegradation of the test item in comparison to the functional control and toxicity control:
Biodegradation | ||||
Study Day [d] | ||||
6 | 15 | 21 | 28 | |
Test Item, 1st Replicate | 35 | 78 | 87 | 95 |
Test Item, 2nd Replicate | 39 | 81 | 89 | 96 |
Functional Control | 61 | 82 | 84 | 85 |
Toxicity Control | 37 | 68 | 76 | 84 |
Description of key information
Based on the results of a CO2 evolution test (Modified Sturm Test) the test material is considered to be readily biodegradable within 28 days and complying to the 10-day window.
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
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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