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Diss Factsheets
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EC number: 936-118-2 | 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:
- 10.-14.07.2017
- 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
- Remarks:
- and capillary method
- Key result
- Melting / freezing pt.:
- >= 141 - <= 150 °C
- Atm. press.:
- 1 013 hPa
- Decomposition:
- no
- Conclusions:
- The melting point of the test substance is in the range of 141 -150°C.
- Executive summary:
A study was conducted according to OECD TG 102 and Regulation (EC) No 440/2008 method A.1 to determine the melting point of the test item using differential scanning calorimetry and capillary method. The test item and the reference were heated up from the starting temperature to the final temperature at a constant heating rate in a defined atmosphere (nitrogen). Aluminium crucibles with hole were used as containers for the test item and the reference. The test item showed two endothermal effects. The first was observed with an onset temperature of 108 - 109 °C in the DSC-measurement (optical observation: no effect was observed). The second effect was observed with an onset temperature of 145 °C in the DSC-measurement (optical observation: start of melting at 141 °C, completely melted at 150 °C). The test item had a melting point in the range of 141 -150 °C (1013 hPa).
Reference
DSC measurement
Two DSC measurements with a heating rate of 10 K/min showed two endothermal effects (melting) in the temperature range of 105 - 120 °C and 140 - 160 °C The first measurement showed a drift of the base line starting at 460 °C. This is possibly due to a decomposition of the sample since after the measurement a beige residue was observed in the crucible. The onset temperatures (see Table 1) were derived from the intersection of the tangent line with the highest slope of the endothermal peak with the baseline.
Table 1: Melting point (DSC measurements)
Ident No. |
Test item / mg |
Starting temperature / °C |
Final test temperature / °C |
Temperature range (endothermal) / °C |
Onset (melting) / °C |
Crucible |
Observations after the measurement |
36368 |
9.94 |
25 |
500 |
105-120 140-160 |
109.2 144.6 |
Aluminium with a hole |
Measurement continued after melting, beige residue after measurement |
36370 |
11.13 |
25 |
200 |
105-120 140-155 |
107.7 145.4 |
Aluminium with a hole |
solidified melt after the measurement |
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.
Table 2: Results of the capillary method
No. |
Set point / °C |
Heating rate / K/min |
End point / °C |
Remarks |
|
1 |
80 |
10 |
170 |
Approx. 141 °C: Approx. 150 °C: Approx. 170 °C: |
test item started to melt test item completely melted no further change observed |
Description of key information
The test item had a melting point in the range of 141 - 150 °C (reference 4.2-1).
Key value for chemical safety assessment
Additional information
A study was conducted according to OECD TG 102 and Regulation (EC) No 440/2008 method A.1 to determine the melting point of the test item using differential scanning calorimetry and capillary method. The test item and the reference were heated up from the starting temperature to the final temperature at a constant heating rate in a defined atmosphere (nitrogen). Aluminium crucibles with hole were used as containers for the test item and the reference. The test item showed two endothermal effects. The first was observed with an onset temperature of 108 - 109 °C in the DSC-measurement (optical observation: no effect was observed). The second effect was observed with an onset temperature of 145 °C in the DSC-measurement (optical observation: start of melting at 141 °C, completely melted at 150 °C). The test item had a melting point in the range of 141 -150 °C (1013 hPa).
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