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Diss Factsheets
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EC number: 243-325-5 | CAS number: 19800-42-1
- 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 May 10, 2016 to May 24, 2016
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- differential scanning calorimetry
- Key result
- Melting / freezing pt.:
- 225.7 °C
- Atm. press.:
- 101 325 Pa
- Conclusions:
- Under the study conditions, the melting temperature of the test substance was determined to be 225.7 °C (DSC measurements and the capillary method). Afterwards, decomposition started.
- Executive summary:
A study was conducted to determine the melting /freezing point of the test substance according to OECD Guideline 102 and EU Method A.1. Two procedures were used: differential scanning calorimetry measurements and the capillary method. Two DSC measurements in aluminium crucibles with a hole with a heating rate of 10 K/min showed an endothermal effect (melting) in the temperature range of 160 – 240 °C for the 1st measurement and 200 – 240 °C for the 2nd measurement, respectively. At 240 °C, an exothermal decomposition started. The onset temperature was derived from the intersection of the tangent line with the highest slope of the endothermal peak with the baseline. The measurement with the capillary method was performed to clarify the results of the DSC measurements. Since this measurement was performed only as a verifying screening, a high heating rate of 10 K/min was chosen and therefore the absolute temperature values derived with the capillary method were not as accurate as the DSC results. The filling height of the test item was approximately 5 mm. Under the study conditions, the melting temperature of the test substance was determined to be 225.7 °C. Afterwards, decomposition started (Dornhagen, 2016).
Reference
1. Melting point / melting range: DSC measurement
Two DSC measurements in aluminium crucibles with a hole with a heating rate of 10 K/min showed an endothermal effect (melting) in the temperature range of 160 – 240 °C for the 1st measurement and 200 – 240 °C for the 2nd measurement, respectively. At 240 °C, an exothermal decomposition started. The onset temperature was derived from the intersection of the tangent line with the highest slope of the endothermal peak with the baseline.
2. Melting point / melting range: capillary tube in a metal block
A measurement with the capillary method was performed to clarify the results of the DSC measurements. Since this measurement was performed only as a verifying screening, a high heating rate of 10 K/min was chosen and therefore the absolute temperature values derived with the capillary method were not as accurate as the DSC results. The filling height of the test item was approximately 5 mm.
Description of key information
The melting point / freezing point was determined according to OECD Guideline 102 and EU Method A.1 (Dornhagen, 2016).
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 225.7 °C
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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