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EC number: 271-366-9 | CAS number: 68551-17-7
- 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:
- 21 Nov 2017 - 11 Jan 2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- GLP guideline study
- Reason / purpose for cross-reference:
- reference to other study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Version / remarks:
- adopted in 2008
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- adopted in 1995
- Qualifier:
- according to guideline
- Guideline:
- other: CIPAC MT1
- Qualifier:
- according to guideline
- Guideline:
- other: EPA 830.7200
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- Hess. Ministerium für Umwelt, Klimaschutz, Landwirtschaft und Verbraucherschutz, Wiesbaden, Germany
- Type of method:
- differential scanning calorimetry
- Key result
- Melting / freezing pt.:
- < -100 °C
- Atm. press.:
- ca. 1 000 hPa
- Conclusions:
- The test item has a freezing/melting point of < -100°C at atmospheric pressure (998 – 1003 hPa).
- Executive summary:
The test item has a freezing/melting point of < -100°C at atmospheric pressure (998 – 1003 hPa).
Reference
Results
During the cooling phase to -100 °C, no exothermic (freezing) could be
detected. During the heating phase, starting at -100 °C, an endothermic
effect was observed in the temperature range of 60 to 200 °C which can
be assigned to the boiling of the test item.
DSC-measurement results
Sample weight [mg] |
Onset of effect [°C] |
Range of effect [°C] |
Weight loss [mg] |
Atmospheric pressure [hPa] |
9.16 |
96.75 |
60 – 200 |
9.13 |
1003 |
14.64 |
103.07 |
70 - 200 |
14.64 |
998 |
The freezing /melting point of the test item is < -100 °C.
Measurements by the test tube method
(melting point)
To verify the results of the DSC measurement, an additional measurement
with the test tube method was performed in the temperature range of
-138.1 to -109 °C. Therefore, 5.49 g of test item was cooled down by
liquid nitrogen to a temperature of -138.1 °C and slowly heated up. The
observations during the test with the test tube method are summarized
below.
Observations during the test with the test tube method
Temperature [°C] |
Observation |
Start at 23.2 |
Test item liquid |
-138.1 |
Test item solid, crystalline appearance |
-115.0 |
Test item solid, crystalline appearance |
-114.0 |
Test item highly viscous liquid |
-109.2 |
Test item liquid |
According to the observations during the test with the test tube method, the freezing/melting point is < -100 °C. This result is only an indication and therefore not sufficient for an accurate determination of the freezing point/melting point.
Conclusion
The test item has a freezing/melting point of < -100 °C at atmospheric
pressure (998 – 1003 hPa).
Description of key information
The substance has a freezing/melting point of < -100 °C at atmospheric pressure (DSC, OECD 102)
Key value for chemical safety assessment
Additional information
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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