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Diss Factsheets
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EC number: 303-757-8 | CAS number: 94213-53-3
- 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:
- February 02nd, 2018
- 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)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: OECD Guideline 113 (Screening Test for Thermal Stability and Stability in Air)
- Deviations:
- no
- 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 its initial form.
- Decomposition:
- yes
- Decomp. temp.:
- 170 - 255 °C
- Conclusions:
- The substance decomposes before melting (at ca 210 °C)
- Executive summary:
The thermal behaviour of test item was assessed using the DSC analysis, according to the OECD guideline 102 and OECD guideline 113.
The test was carried out at normal atmospheric pressure. The endotherm and exotherm peaks in the thermograms do not imply phase transition from a solid to liquid state. Using a linear heating rate melting point was not observed from room temperature up to 500 °C.
During the heating two consecutive exothermic signals were observed in the temperature range of approx. 172 – 254 °C (onset 210 °C) that can be associated with the decomposition of the test item.
Before the test, the appearance of the sample was dark violet powder. After the experiments the test item blackened and its volume increased in the crucible.
Conclusion
The substance decomposes before melting (at ca 210 °C)
Reference
During the heating two consecutive exothermic signals were observed in the temperature range of approx. 172 – 254 °C that can be associated with the decomposition of the test item.
Summary of the DSC Test of test item
Experiment 1 | Experiment 2 | Mean | |
Onset of the first exothermic effect [°C] |
209.67 |
210.24 | 209.96 |
Endset of the first exothermic effect [°C] | 228.71 | 229.41 | 229.06 |
Left Limit of the exothermic effects [°C] | 173.79 | 170.41 | 172.10 |
Right Limit of the exothermic effects [°C] | 252.52 | 255.42 | 253.97 |
Energy [J/g] | -403.12 | -387.21 | -395.16 |
Values of the DSC run in the first experiment
Sample weight [mg] | Total loss of Mass of the Sample (%) | Onset of the first exothermic effect [°C] | Endset of the first exothermic effect [°C] | Left Limit [°C] | Right Limit [°C] | Energy [J/g] |
4.11 | 39.7 | 209.67 | 228.71 | 173.79 | 252.52 | -403.12 (exothermic) |
Values of the DSC run in the second experiment
Sample weight [mg] | Total loss of Mass of the Sample (%) | Onset of the first exothermic effect [°C] | Endset of the first exothermic effect [°C] | Left Limit [°C] | Right Limit [°C] | Energy [J/g] |
3.06 | 43.8 | 210.24 | 229.41 | 170.41 | 255.42 | -387.21 (exothermic) |
APPEARANCE OF THE SAMPLE
Before the test, the appearance of the sample was dark violet powder. After the experiments the test item blackened and its volume increased in the crucible.
Description of key information
The substance decomposes before melting (at ca 210 °C)
Key value for chemical safety assessment
Additional information
OECD 102/113 - differential scanning calorimetry
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