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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
Melting point / freezing point
Administrative data
Link to relevant study record(s)
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2018-08-23 to 2018-09-12
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- July 27, 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Version / remarks:
- March 04, 2016
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7200 (Melting Point / Melting Range)
- Version / remarks:
- March 1998
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- differential scanning calorimetry
- Key result
- Melting / freezing pt.:
- < -83.5 °C
- Atm. press.:
- 1 013 hPa
- Decomposition:
- no
- Conclusions:
- Melting point / Freezing point (OECD 102): <-83.5 °C (1013 hPa)
- Executive summary:
In a reliable study performed according to relevant guidelines (e.g. OECD 102) and compliant with GLP, the melting point / freezing point of the submission substance was determined. From differential scanning calorimetry (DSC) no freezing point could be determined down to a temperature of -90 °C. Therefore, additional experiments were performed by placing two subsamples of the test item for 20 hours at -21.4 ± 1.7°C and at -83.5 ± 1.6°C respectively. It was observed after storage that the test item was a liquid (-21.4 ± 1.7°C) and a very viscous liquid (-83.5 ± 1.6°C). According to this it was concluded that the melting temperature of the test item is < -83.5°C (< 189.7K).
Reference
Preliminary test (termogravimetric analyzer, TGA):
Starting at 125°C, the weight of the sample decreased significantly. At 162°C, the sample weight had decreased by 25%. After the experiment, a black molten residue remained in the sample container (original colour: red). The change of the colour indicated reaction and/or decomposition of the test item.
Main Study (DSC):
During cooling no effects were observed (data not shown). During heating an endothermic effect was observed starting at 100°C (the DSC curve obtained is shown in the attached Figure). The endothermic effect was probably obtained due to reaction and/or decomposition of the test item. After the experiment, the residue remained unchanged.
An additional investigation of the melting temperature of the test item was performed placing two subsamples of the test item for 20 hours at -21.4 ± 1.7°C and at -83.5 ± 1.6°C respectively. It was observed after storage that the test item was a liquid (-21.4 ± 1.7°C) and a very viscous liquid (-83.5 ± 1.6°C). According to this it was concluded that the melting temperature of the test item is < -83.5°C (< 189.7K).
Description of key information
Melting point / Freezing point (OECD 102): <-83.5 °C (1013 hPa)
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- -83.5 °C
Additional information
In a reliable study performed according to relevant guidelines (e.g. OECD 102) and compliant with GLP, the melting point / freezing point of the submission substance was determined. From differential scanning calorimetry (DSC) no freezing point could be determined down to a temperature of -90 °C. Therefore, additional experiments were performed by placing two subsamples of the test item for 20 hours at -21.4 ± 1.7°C and at -83.5 ± 1.6°C respectively. It was observed after storage that the test item was a liquid (-21.4 ± 1.7°C) and a very viscous liquid (-83.5 ± 1.6°C). According to this it was concluded that the melting temperature of the test item is < -83.5°C (< 189.7K).
For the key value, no "lower than" values can be specified. Therefore, -83.5°C is given as the key value for the melting/freezing point.
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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