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Diss Factsheets
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EC number: 248-324-3 | CAS number: 27206-35-5
- 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
Boiling point
Administrative data
- Endpoint:
- boiling point
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- the study does not need to be conducted because the substance is a solid which decomposes before boiling
- Justification for type of information:
- JUSTIFICATION FOR DATA WAIVING
Decomposition: 288 - 313 °C (exp.), see IUCLID section 4.2.
Cross-reference
- Reason / purpose for cross-reference:
- data waiving: supporting information
Reference
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 22 July - 16 August 2005 and 05 September - 17 October 2005
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with national standard methods with acceptable restrictions
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- Investigations by differential scanning calorimetry (DSC) provide information on the thermal behavior of substances. Samples of the test substance and of a reference material are subjected to the same controlled temperature programme; they are heated in an oven at a constant heating rate, and the temperatur is measured in two containers. The difference in energy input necessary to maintain identical temperatures between the substance and the reference material is recorded. When the sample undergoes a phase transition, the corresponding change of enthalpy gives a departure form the base line of the heat flow record.
The DSC is mainly used as screening method for thermal stability analysis to determine the beginning of decomposition (onset temperature) and the heat of decomposition. - GLP compliance:
- no
- Type of method:
- other: Differential scanning calorimetry (DSC)
- Key result
- Melting / freezing pt.:
- >= 223 - <= 248 °C
- Decomposition:
- yes
- Decomp. temp.:
- >= 288 - <= 313 °C
- Remarks on result:
- other: No significant exothermic reaction up to 400°C; no information on pressure given.
- Conclusions:
- Melting range: 223 °C - 248 °C; decomposition: 288 - 313 °C
- Executive summary:
The melting point of the test substance was determined by using differential scanning calorimetry (2005, non-GLP). No significant exothermic reaction up to 400°C was observed. The melting range of the test substance has been determined to be 223 - 313° C; there were two endothermic events at 223 - 248 °C and 288 -313°C. Both melting and decomposition (i.e. phase transitions) result generally in an endothermic event at DSC. Since there were two endothermic events measured, it can be reasonably concluded that the second event would be due to decomposition, not boiling (especially as boiling for salts is unlikely at these temperatures).
No significant exothermic reaction up to 400°C. Temperature range of the endothermic event was 223 - 248 and 288 -313°C, as both melting and decomposition (i.e. phase transitions) result generally in an endothermic event at DSC, it can be reasonably concluded that the second event would be due to decomposition, not boiling.
The enthalpie measured for the events were 41/45 or 226 J/g, respectively.
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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