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Diss Factsheets
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EC number: 424-970-3 | 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
Surface tension
Administrative data
- Endpoint:
- surface tension
- Data waiving:
- study technically not feasible
- Justification for data waiving:
- the study does not need to be conducted because water solubility is below 1 mg/L at 20°C
Cross-reference
- Reason / purpose for cross-reference:
- data waiving: supporting information
Reference
- Endpoint:
- water solubility
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 19 April 1999 - 7 May 1999
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.6 (Water Solubility)
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- column elution method
- Specific details on test material used for the study:
- Storage: ambient temperature, in the dark
- Water solubility:
- 0.12 mg/L
- Conc. based on:
- test mat.
- Temp.:
- 20 °C
- pH:
- ca. 7
- Details on results:
- Preliminary test:
The sample that was centrifuged twice was analysed by HPLC, resulting in a solubility of approximately 0.40 mg/L. Based on this outcome it was decided to apply the column-elution method.
Main test:
The water solubility was calculated from the peak height in the chromatogram. In the first series a steady-state was found (difference between 5 successive fractions less than 30%). All calculated solubilities were in the range of 0.2 -0.1 mg/L.
In the second series no steady state was found. The range of the calculated water solubilities was 0.07 - 0.004 mg/L.
The test item appeared to react with water, as the solubility of the test substance appeared to be lower at a lower flow-rate in the column-elution test.
To demonstrate that the test substance reacts with water, three solutions were prepared in water from stock solution (0.05, 0.10 and 0.25 mg/L). The concentration of SDBR in the three solutions was followed for 5 days with HPLC. The results (included below) indicate that the SDBR degrades with time when dissolved in water. The product of decomposition shows a peak in the chromatogram with a retention time which is 0.3s earlier than the peak of the test substance (nb: chromatograms not included in the report). - Conclusions:
- The water solubility under steady-state conditions of SDBR was found to be 0.12 mg/L at 20ºC.
Reaction of SDBR in water as a followed for 5 days
Concentration (mg/L) | 1st day recovery (%) | 2nd day recovery (%) | 3rd day recovery (%) | 4th day recovery (%) | 5th day recovery (%) |
0.05 | 134* | 70 | 0 | 0 | 0 |
0.10 | 101 | 42 | 0 | 5** | 0 |
0.25 | 102 | 76 | 56 | 52 | 48 |
* memory effect
** decomposition product
Data source
Materials and methods
Results and discussion
Applicant's summary and conclusion
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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