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Diss Factsheets
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EC number: - | 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
Boiling point
Administrative data
Link to relevant study record(s)
- Endpoint:
- boiling point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 16 March 2020 - 14 July 2020
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.2 (Boiling Temperature)
- Version / remarks:
- 30 May 2008
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling Point)
- Version / remarks:
- 27 July 1995
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- differential scanning calorimetry
- Key result
- Atm. press.:
- 101 kPa
- Decomposition:
- yes
- Decomp. temp.:
- ca. 194 °C
- Remarks on result:
- other: As the test item decomposed, no value for boiling temperature could be determined
- Conclusions:
- The test item has been determined to decompose from approximately 194 °C (467 K) at 101 kPa. As the test item decomposed, no value for boiling temperature could be determined.
- Executive summary:
Boiling Temperature. Decomposed from approximately 194 °C (467 K), at 101 kPa, by differential scanning calorimetry, designed to be compatible with Method A.2 Boiling Temperature of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 103 of the OECD Guidelines for Testing of Chemicals, 27 July 1995. Study conducted under GLP conditions.
As the test item decomposed, no value for boiling point could be determined.
Reference
The thermograms and thermographic data for Determinations 1 and 2 are shown in the attached figures and following table:
Table 3 - Thermographic data
Thermal Event | Interpretation | Temperature | |
Determination 1 | Determination 2 | ||
Endotherm | Initial gradual onset of decomposition | 208.89 | 194.24 |
Extrapolated decomposition | 355.41 | 354.10 |
Atmospheric pressure: 101 kPa
After heating to 400 °C, the samples had lost approximately 88% and 93% of their original weight for Determinations 1 and 2 respectively.
Overall result: decomposition from approximately 194 °C (467 K)
Discussion
Similar informational runs were also performed but which were terminated at 320 °C and 380 °C to observe their residues. After being heated the 380 °C the residue was a black viscous liquid (51% loss of original weight). This demonstrated the test item was significantly decomposed prior to the peak temperature of the main endotherm. After being heated to 320 °C the residue was a dark brown viscous liquid (11% loss of original weight).
This indicated that decomposition was occurring prior to 320 °C because the test item was originally light amber in colour. Decomposition then continued to occur up to 380 °C and beyond this to 400 °C.
The main endotherm in the thermograms was considered to be volatilisation of components due to decomposition of the test item, rather than actual boiling of the test item. Although the main endotherm had an easily defined extrapolated onset temperature of 355 °C, the endotherm did have a shallow rate of enthalpy change initially meaning its onset temperature could only be approximated. Decomposition was taken to start from approximately 194 °C.
There was also a smaller endotherm at approximately 310 °C. It was not known if this was part of the volatilisation of decomposition products or the boiling of a specific component that hadn’t decomposed. However, it was considered not to form a significant composition of the test item.
Description of key information
The test item has been determined to decompose from approximately 194 °C (467 K) at 101 kPa. As the test item decomposed, no value for boiling temperature could be determined.
Key value for chemical safety assessment
- Temperature of decomposition (state purity):
- 194 °C
Additional information
Boiling Temperature. Decomposed from approximately 194 °C (467 K), at 101 kPa, by differential scanning calorimetry, designed to be compatible with Method A.2 Boiling Temperature of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 103 of the OECD Guidelines for Testing of Chemicals, 27 July 1995. Study conducted under GLP conditions.
As the test item decomposed, no value for boiling point could be determined.
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