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Diss Factsheets
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EC number: 414-940-8 | 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
- Reliability:
- 1 (reliable without restriction)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 994
- Report date:
- 1994
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 301 B (Ready Biodegradability: CO2 Evolution Test)
- Deviations:
- yes
- Remarks:
- only one CO2 scrubber was used
- GLP compliance:
- yes (incl. QA statement)
Test material
Reference
- Name:
- Unnamed
- Type:
- Constituent
- Details on test material:
- - Theoretical carbon content: 62,86 %
- Identification code: CA 944 A
- Batch No.: P.810012
- Purity: 93,2 %
- Received: 1993-08-05
Study design
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge (adaptation not specified)
- Details on inoculum:
- Activated sludge was collected from the sewage treatment plant of CH-4153 Reinach on 15/11/93.
The pH after collection was 7.0.
The preparation was carried out according to the method described in the guideline. - Duration of test (contact time):
- 29 d
Initial test substance concentrationopen allclose all
- Initial conc.:
- 27.3 mg/L
- Based on:
- ThOD/L
- Initial conc.:
- 28.5 mg/L
- Based on:
- ThOD/L
Parameter followed for biodegradation estimation
- Parameter followed for biodegradation estimation:
- CO2 evolution
- Details on study design:
- DESING AND PROCEDURE
- Vessels: 2 Liter flasks (dark brown glass) equipped with gas inlet and magnetic stirrer
- Air: 25 ml/min carbon dioxide free air
- CO2 scubbers: approx 250 ml scrubbers with gas inlet tubes equipped with sintered glass tips containing 200 ml 0,05 N sodium hydroxide
Only one CO2 scrubber was used per test buttle. Theoretically, a solution of 0,05 M NaOH is sufficient to trap at least two times more CO2 than the maximum ThCO2 wich can evolve in each test bottle (including CO2 possibly evolved from the bacteria e.g., endogenous respiration). Moreover, experimentally it was confirmed that no measurable CO2 carry over has ever occured with the scubbers used.
SET UP OF FLASKS
- Flasks 1 and 2: test substance and inoculum
- Flasks 3 and 4: test medium and inoculum (inoculum blank)
- Flask 5: reference substance and inoculum (procedure control)
- Flask 6: reference substance, test substance and inoculum (control of toxicity and inhibitoren of the bacteria's activity by the test substance)
DURATION AND SAMPLING
The test duration was 29 days. During this time the evolved CO2 trapped by the 0,05 N NaOH solution was measured at 0, 2, 6, 10, 14, 16, 21, 28 and 29 days. The last measurement was performed after acidification of the medium with 1 ml of concentrated HCl.
Reference substance
- Reference substance:
- other: Sodium benzoate
Results and discussion
% Degradation
- Parameter:
- % degradation (CO2 evolution)
- Value:
- 0
- Sampling time:
- 29 d
Applicant's summary and conclusion
- Interpretation of results:
- under test conditions no biodegradation observed
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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