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Diss Factsheets
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EC number: 951-619-6 | 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:
- 25.07.-22-08.2019
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- differential scanning calorimetry
- Key result
- Melting / freezing pt.:
- > 500 °C
- Atm. press.:
- ca. 1 013.25 hPa
- Decomposition:
- no
- Remarks on result:
- not determinable
- Remarks:
- no melting point up to 500 °C.
- Conclusions:
- The test item had no melting range/point up to 500 °C.
- Executive summary:
A study was conducted according to OECD test guideline 102, Regulation (EC) No 440/2008 method A.1. The melting range was determined by differential scanning calorimetry. The test item and the reference are heated up from the starting temperature to the final temperature at a constant heating rate in a defined atmosphere (nitrogen). Open crucibles are used as containers for the test item and as empty reference crucible. The quantity of heat absorbed or released is measured and recorded. A measurement with the capillary method was performed to clarify the results of the DSC measurements.
The test item showed an endothermal effect at a temperature range of 150 -180 °C in the DSC measurement (optical observation: test item started to melt). The capillary method measurement showed that the test item got glassy at around 190 °C but did not melt up to 200 °C. Under consideration of the results from the DSC measurements (small endothermal peak with an onset at 160 °C) and the capillary method (test item got glassy) it was concluded that the test item did not melt up to 500 °C. The test item had no melting range/point up to 500 °C.
Reference
DSC measurement
Three DSC measurements with a heating rate of 10K/min in aluminium crucibles with a hole showed an endothermal effect (melting) in the temperature range of 150 - 180°C with onset temperatures of 160.31°C, 160.17°C and 160.17°C, respectively. The onset temperature (see Table 1) was derived from the intersection of the tangent line with the highest slope of the endothermal peak with the baseline.
Melting point (DSC measurements)
Ident No. |
Test item/ mg |
Starting temperature / °C |
Final test temperature / °C |
Temperature range (melting) /°C |
Onset / °C |
Crucible |
Observations after the measurement |
38755 |
12.41 |
25 |
500 |
155 - 175 |
160.31 |
Aluminium with a hole |
The test item was an orange melt, no mass loss. |
38757 |
7.42 |
25 |
550 |
150 - 180 |
160.17 |
Aluminium with a hole |
Test item was a black residue, mass loss 28%. |
38759 |
7.89 |
25 |
200 |
155 - 175 |
160.17 |
Aluminium with a hole |
The test item was a white melt. |
An additional measurement with the capillary method was performed in order to clarify the melting behavior.
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 are not as accurate as the DSC results. The filling height of the test item was approximately 5 mm. The results are summarized in the table below.
Table 2: Results of the capillary method
No. |
Set point/°C |
Heating rate/ K/min |
Endpoint/ °C |
Remarks |
1 |
100 |
10 |
200 |
Approx. 100 "C: the light-yellow solid test item appeared unchanged, but small drops were observed at the surface of the capillary Approx. 190.5 °C: the test item started to appear glassy Approx. 200 °C: no further change (test item is still a solid and not melted) |
The capillary method measurement showed that the test item got glassy at around 190 °C but did not melt up to 200 °C.
Under consideration of the results from the DSC measurements (small endothermal peak with an onset at 160 °C) and the capillary method (test item got glassy) it was concluded that the test item did
not melt up to 500 °C. The test item had no melting range/point up to 500 °C.
Description of key information
The test item had no melting point/range up to 500 °C.
Key value for chemical safety assessment
Additional information
A study was conducted according to OECD test guideline 102, Regulation (EC) No 440/2008 method A.1. The melting point / melting range was determined by differential scanning calorimetry (DSC). The test item and the reference are heated up from the starting temperature to the final temperature at a constant heating rate in a defined atmosphere (nitrogen). Open crucibles are used as containers for the test item and as empty reference crucible. The quantity of heat absorbed or released is measured and recorded. The DSC measurements (25 - 500 °C) supported by the capillary method showed no clear melting point (onset) up to 500 °C.
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