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EC number: 847-991-3 | CAS number: 90278-32-3
- 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:
- 01 September - 18 September 2015
- 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.:
- > 90.5 - < 129.8 °C
- Atm. press.:
- ca. 1 013.25 hPa
- Decomposition:
- no
- Conclusions:
- The DSC measurements showed that the test item had a melting range of 90.5 - 129.8 °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 three endothermal effects. The first was observed with an onset temperature of 90.5 °C in the DSC-measurement (optical observation: test item started to melt) The second endothermal effected consisted of two phases. During the first phase (onset temperature 125.0 °C) the test item changed from a solid to a turbid liquid. During the second phase (onset temperature 129.8 °C) the test item changed from a turbid liquid to a clear liquid.
Reference
Two DSC measurements with a heating rate of 10 K/min showed two endothermal effects in the temperature ranges of 75 - 110 °C and 120 - 140 °C (two stage effect: the first part from approximately 120 - 130 °C and the second effect from approximately 130 - 140 °C). The first measurement showed another endothermal effect after these endothermal effects. 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.
Tabel 1: Melting point (DSC measurements)
Ident No. |
Test item/ mg |
Starting temperature / °C |
Final test temperature / °C |
Temperature range (melting) /°C |
Onset / °C |
Crucible |
Observations |
35238 |
10.41 |
25 |
500 |
75 – 110 120 – 140 370 - 415 |
90.65 124.93/129.79 n.d. |
Aluminium with a hole |
Measurement continued after melting |
35240 |
9.77 |
25 |
200 |
80 – 105 120 - 135 |
90.43 124.97/129.90 |
Aluminium with a hole |
Test item was a solidified melt after the measurement |
An additional measurement with the capillary method was performed in order to clarify the melting point.
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 |
Endpoint/ °C |
Remarks |
1 |
40 |
10 |
140 |
Approx. 80°C: test item started to melt Approx. 127°C: test item appeared melted and turbid Approx. 131°C: test item appeared melted and clear |
2 |
40 |
10 |
140 |
Approx. 80°C: test item started to melt Approx. 127°C: test item appeared melted and turbid Approx. 131°C: test item appeared melted and clear |
Description of key information
The test item had a melting point/range of 90.5 to 129.8 °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 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 three endothermal effects. The first was observed with an onset temperature of 90.5 °C in the DSC-measurement (optical observation: test item started to melt) The second endothermal effected consisted of two phases. During the first phase (onset temperature 125.0 °C) the test item changed from a solid to a turbid liquid. During the second phase (onset temperature 129.8 °C) the test item changed from a turbid liquid to a clear liquid.
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