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EC number: 278-130-4 | CAS number: 75214-63-0
- 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:
- September 20th to 22nd, 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with generally accepted scientific standards and described in sufficient detail
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- adopted July 27, 1995
- Qualifier:
- according to guideline
- Guideline:
- other: OECD Guideline No. 113 (Screening Test for Thermal Stability and Stability in Air)
- Version / remarks:
- adopted May 12, 1981
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- differential scanning calorimetry
- Specific details on test material used for the study:
- The test item was used in its initial form.
- Decomposition:
- yes
- Decomp. temp.:
- 128 °C
- Conclusions:
- Substance decomposition at ca 128 °C
- Executive summary:
For the determination of the melting point differential scanning calorimetry method was used. The test was carried out at normal atmospheric pressure.
Based on the results of the DSC curves and the appearance of the test item after the supplementary tests, the test item started to decompose from 128.08 °C (401.23 K).
Conclusion
Substance decomposition at ca 128 °C
Reference
APPEARANCE OF TEST ITEM
Before the test, the substance appeared as a dark orange powder. After the experiments the test item melted and blackened in the crucible.
THERMAL BEHAVIOUR - FIRST EXPERIMENT
Summary of the DSC result in first experiment, referred to the graphic records
Experiment 1 | Experiment 2 | Experiment 3 | Mean | ||
Endotherm Peaks | Left Limit [°C] | 127.68 | 128.91 | 127.65 | 128.08 |
Right Limit [°C] | 187.88 | 195.14 | 187.89 | 190.30 | |
Exotherm Peak 1 | Left Limit [°C] | 187.86 | - | 187.90 | 187.88 |
Right Limit [°C] | 195.55 | - | 205.56 | 200.56 | |
Exotherm Peak 2 | Left Limit [°C] | 203.97 | 208.91 | 215.50 | 209.46 |
Right Limit [°C] | 215.17 | 217.28 | 232.53 | 221.66 |
Values of the DSC run in the first experiment - Run 1
Sample weight [mg] | Total loss of Mass (%) | Onset of effect [°C] | Endset of effect [°C] | Left Limit [°C] | Right Limit [°C] | Energy [J/g] |
4.39 | 64 | 172.3 | 187.31 | 127.68 | 187.88 | -26.58 (endothermic) |
187.86 | 195.55 | 187.86 | 195.55 | 2.57 (exothermic) |
||
203.97 | 215.17 | 203.97 | 215.17 | 15.84 (exothermic) |
Values of the DSC run in the first experiment - Run 2
Sample weight [mg] | Total loss of Mass (%) | Onset of effect [°C] | Endset of effect [°C] | Left Limit [°C] | Right Limit [°C] | Energy [J/g] |
4.8 | 67.7 | 172.59 | 192.99 | 128.91 | 195.14 | -36.11 (endothermic) |
209.96 | 217.28 | 208.91 | 217.28 | 13.88 (exothermic) |
Values of the DSC run in the first experiment - Run 3
Sample weight [mg] | Total loss of Mass (%) | Onset of effect [°C] | Endset of effect [°C] | Left Limit [°C] | Right Limit [°C] | Energy [J/g] |
4.8 | 75.9 | 173.11 | 187.49 | 127.65 | 187.89 | -22.63 (endothermic) |
187.90 | 205.56 | 187.9 | 205.56 | 13.72 (exothermic) |
||
227.34 | 232.19 | 215.5 | 232.53 | 20.77 (exothermic) |
SECOND EXPERIMENT
During the heating up phase two consecutive endotherm peaks were observed in the temperature range of approx. 128-190 °C. During the cooling down phase no thermal effects were observed from 190 to 25 °C
Values of the DSC run in the second experiment - run 1
Sample weight [mg] | Loss of Mass (%) | Observation |
3.09 | 2.3 | reddish brown, clumped powder |
Values of the DSC run in the second experiment - run 2
Sample weight [mg] | Loss of Mass (%) | Observation |
4.30 | 4.9 | reddish brown melt with shiny green surface; bubbles were visible in the melt. |
Description of key information
Substance decomposition at ca 128 °C. No melting recorded up to 500 °C.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 500 °C
Additional information
OECD 102 and 113 - differential scanning calorimetry
The value for the chemical safety assessment was set to the 500 °C, i.e. the higher limit of temperature investigated.
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