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EC number: 860-352-3 | CAS number: 1610350-91-8
- 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 2020-02-24 to 2020-04-27
- 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
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7200 (Melting Point / Melting Range)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- differential scanning calorimetry
- Remarks:
- and capillary method
- Key result
- Atm. press.:
- > 984 - < 993 hPa
- Decomposition:
- yes
- Decomp. temp.:
- ca. 200 °C
- Sublimation:
- no
- Conclusions:
- For the test item no melting point was found at atmospheric pressure (984 – 993 hPa) until the decomposition starting at a temperature of approx. 200 °C as determined by differential scanning calorimetry and confirmed by the capillary method.
- Executive summary:
A study was conducted according to OECD TG 102, Regulation (EC) No 440/2008 method A.1 and EPA OPPTS 830.7200 to determine the melting point/range of the test item using differential scanning calorimetry (DSC). The test item was weighed into an aluminium crucible under air. Two tests with about 7 – 8 mg of the test item were performed. As reference crucible, an empty aluminium crucible was used. The substance is solid at ambient conditions. The crucible was heated from room temperature to 500 °C with 10 K/min heating rate under air. Several exothermic and endothermic effects were observed in the temperature range of 160 – 420 °C.As none of the endothermic effects could be clearly assigned to a melting of the test item, the capillary method was performed in order to visually investigate if there is a melting or boiling up to a temperature of 400 °C. The test item did not melt completely up to the maximum temperature of 400 °C. Due to the observations in the measurements using the capillary method, it can be stated that the test item has no melting point up to its decomposition starting at a temperature of approx. 200 °C.
Reference
Starting at a temperature of 160 °C a first endothermic effect could be observed, which was directly followed by an exothermic effect starting at a temperature of 200 °C with an energy release of -60 J/g. The exothermic effect was directly followed by an endothermic effect starting at a temperature of 240 °C. A third endothermic effect was observed in the temperature range of 310 °C – 430 °C.
Table1: Results of the DSC-measurements
No. |
Sample weight / mg |
Onset of Effect / °C |
Range of effect / °C |
Weight loss / mg |
Atmospheric pressure / hPa |
PN19190 |
7.38 |
175.95 |
160 – 200 (endo) |
2.70 |
993.3 |
PN19198 |
8.28 |
175.90 |
160 – 200 (endo) |
2.98 |
983.5 |
As none of the endothermic effects could be clearly assigned to a melting or boiling of the test item, the capillary method was performed in order to visually investigate if there is a melting or boiling up to a temperature of 400 °C.
The test item turned from white to brown starting at a temperature of approx. 275 °C. At this temperature the test item was still solid. Starting at a temperature of approx. 320 °C a partial liquefaction could be observed. At a temperature of 400 °C there were still residues of solid matter in the partial liquefied test item.
Due to the observations in the measurements using the capillary method, it can be stated that the test item has no melting or boiling point up to its decomposition starting at a temperature of approx. 200 °C.
Description of key information
For the test item no melting point was found at atmospheric pressure (984 – 993 hPa) until the decomposition starting at a temperature of approx. 200 °C as determined by differential scanning calorimetry and confirmed by the capillary method (reference 4.2-1).
Key value for chemical safety assessment
Additional information
A study was conducted according to OECD TG 102, Regulation (EC) No 440/2008 method A.1 and EPA OPPTS 830.7200 to determine the melting point/range of the test item using differential scanning calorimetry (DSC). The test item was weighed into an aluminium crucible under air. Two tests with about 7 – 8 mg of the test item were performed. As reference crucible, an empty aluminium crucible was used. The substance is solid at ambient conditions. The crucible was heated from room temperature to 500 °C with 10 K/min heating rate under air. Several exothermic and endothermic effects were observed in the temperature range of 160 – 420 °C.As none of the endothermic effects could be clearly assigned to a melting of the test item, the capillary method was performed in order to visually investigate if there is a melting or boiling up to a temperature of 400 °C. The test item did not melt completely up to the maximum temperature of 400 °C. Due to the observations in the measurements using the capillary method, it can be stated that the test item has no melting point up to its decomposition starting at a temperature of approx. 200 °C.
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