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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:
- 2019-2020
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling Point)
- Version / remarks:
- 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.2 (Boiling Temperature)
- Version / remarks:
- 2008
- Deviations:
- no
- Principles of method if other than guideline:
- Not applicable.
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- Inspected on 15-16/11/2017, Signed on 15/05/2018
- Type of method:
- dynamic method
- Key result
- Boiling pt.:
- > 170 °C
- Atm. press.:
- >= 999.3 - <= 1 007.9 mBar
- Conclusions:
- The boiling point of the test item should be stated as 409.79 °C in a boiling process beginning at 170 °C (dynamic method).
- Executive summary:
An experimental study, conducted in accordance with conditions recommended in OECD guideline and under GLP, was performed. The main determination of the boiling point of the test item was determined with the method following Cottrell.
Two experiments were performed using the Dynamic method using Cottrell apparatus to determine the initial boiling point of the item.
Constant pumping of the Cottrell pump was observed at 222 °C (first determination) and 221 °C (second determination) whereas the thermometer in the Cottrell pump showed a much lower temperature than the temperature in the sample 180.8 °C (first determination) and 181.5 °C (second determination). The measured temperatures of the thermometer of the Cottrell pump are close to the value determined in the pre-test for the boiling point with 170 °C.
When a pure substance boils, the temperature should be similar to the temperature measured at the Cottrell pump. Considering this observation for complex substance, difference between the temperature of the Cottrell pump and the test vessel may be the sign of a decomposition.
By comparison the results of the dynamic method with the results of the second DSC pre-test measurement a turbulent baseline was observed after the first event since 100 °C. The turbulent behaviour might be cause through the boiling behaviour of the single components of the test item. This turbulent behaviour became more intense since 355 °C.
It can be supposed that the major fraction boils in a range of 355 °C to 430 °C with a maximum of 409.79°C.
The values determined with the Dynamic method represent only a part of the boiling behaviour of the test item. The higher boiling components could not be caught or covered.
Therefore, taking all measurements into account, the boiling point of the test item should be stated as 409.79 °C in a boiling process beginning at 170 °C.
No observations were made which might cause doubts on the validity of the study outcome. Therefore, the result of the study is considered valid.
Reference
Description of key information
The boiling point of the test item should be stated as 409.79 °C in a boiling process beginning at 170 °C.
Key value for chemical safety assessment
Additional information
An experimental study, conducted in accordance with conditions recommended in OECD guideline and under GLP, was performed. It should be considered as a key study. The result should be retained as key data.
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