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EC number: 226-798-2 | CAS number: 5470-11-1
- 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:
- 10 Mar - 03 May 2016
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Reason / purpose for cross-reference:
- reference to other study
- Reason / purpose for cross-reference:
- reference to other study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- GLP compliance:
- no
- Type of method:
- differential scanning calorimetry
- Specific details on test material used for the study:
- Storage conditions: ambient temperature (10 – 30 °C), dry
- Melting / freezing pt.:
- ca. 154.1 °C
- Atm. press.:
- ca. 1 013 hPa
- Decomposition:
- yes
- Decomp. temp.:
- > 154.1 °C
Reference
Results
DSC measurement
Three measurements with a heating rate of 10 K/min showed an endothermal
effect (melting) in the range of 140 to 170 °C. This was directly
followed by an exothermal effect. The DSC measurements with a final
temperature of 500 °C showed further endothermal and exothermal effects
up to the final temperature. The onset temperature was derived from the
intersection of the tangent line with the highest slope of the
endothermal peak with the baseline.
An additional DSC measurement was done to determine whether melting was accompanied by decomposition. Therefore, the measurement was stopped at 162 °C. It showed an endothermal effect starting at 145 °C, no mass loss occurred.
Table 1 – Melting point – DSC measurement
Test item [mg] |
Starting temperature [°C] |
Final test temperature [°C] |
Temperature range (melting) [°C] |
Onset [°C] |
Observations |
6.91 |
25 |
500 |
140 – 165 |
154.26 |
Measurement was continued after melting |
24.41 |
140 – 170 |
154.16 |
|||
8.41 |
200 |
145 – 165 |
153.85 |
Test item was a solidified melt after the measurement, mass loss: 56% |
|
16.97 |
162 |
Start: 145 |
- |
Test item was a solidified melt after the measurement, no mass loss |
Capillary tube in a metal block
To clarify the DSC results, a measurement with the capillary method was
done.
Table 2 – Capillary method results
Set point [°C] |
End point [°C] |
Remarks |
100 |
200 |
100 °C: test item appeared unchanged 200 °C: no further changes |
Conclusion: The test item had a melting point of 154.1 °C, afterwards decomposition started.
Description of key information
154.1 °C at 1013 hPa (OECD 102, DSC)
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 154.1 °C
Additional information
Decomposition started directly after melting.
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