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Diss Factsheets
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EC number: 258-420-7 | CAS number: 53185-52-7
- 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:
- from 05 October 2017 to 09 November 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Version / remarks:
- 2016
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7200 (Melting Point / Melting Range)
- Version / remarks:
- 1998
- Deviations:
- no
- Principles of method if other than guideline:
- A DSC experiment was performed according to the above mentioned guidelines. No melting/freezing point could be determined by DSC. Therefore an additional experiment was performed in which the consistency of the substance was determined by visual observation after storage in freezers at ca. -20°C and at ca. -80°C. The additional experiment is not a guideline study but was described in sufficient detail.
- GLP compliance:
- yes
- Type of method:
- other: 'differential scanning calorimetry' and 'visual observation after storage in freezer'
- Melting / freezing pt.:
- < -90 °C
- Remarks on result:
- other: No thermal DSC effect between 25°C and -90°C.
- Key result
- Melting / freezing pt.:
- < -80 °C
- Remarks on result:
- other: The substance was observed to be a liquid at ca. -20°C and at ca. -80°C.
- Conclusions:
- The substance has no melting/freezing point at temperatures down to -80°C.
- Executive summary:
A DSC experiment showed no effect due to freezing of the substance between 25°C and -90°C (GLP study according to EC A.1, OECD 102 and OPPTS 830.7200).
After storage in freezers, the substance was visually observed to be a liquid at ca. -20°C and a viscous liquid at ca. -80°C.
Based on all results, it was concluded that the substance has no melting/freezing point at temperatures down to -80°C.
Reference
DSC EXPERIMENT
No effects due to melting or crystallization of the test item were observed. After the experiment it was observed that the test item was evaporated from the sample container.
ADDITIONAL EXPERIMENT
It was observed after storage that the test item was a liquid (-20°C freezer) and a viscous liquid (-80°C freezer).
Description of key information
No melting/freezing point down to -80°C (visual observation and DSC experiment, EC A.1, OECD 102, OPPTS 830.7200).
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- -80 °C
Additional information
A DSC experiment showed no effect due to freezing of the substance between 25°C and -90°C. After storage in freezers, the substance was visually observed to be a liquid at ca. -20°C and a viscous liquid at ca. -80°C.
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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