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EC number: 853-587-8 | CAS number: 199387-97-8
- 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:
- 2022-01-17 to 2022-04-04
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Deviations:
- no
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- EPA OPPTS 830.7200 (Melting Point / Melting Range)
- Version / remarks:
- 1998
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- differential scanning calorimetry
- Key result
- Melting / freezing pt.:
- 183.7 °C
- Atm. press.:
- 1 022 hPa
- Decomposition:
- yes
- Decomp. temp.:
- > 183.7 °C
- Remarks on result:
- other: Melting process is directly followed by a decomposition process
- Conclusions:
- The melting point of the test item is 183.7 °C
- Executive summary:
The test item has a melting point of 183.7 °C at atmospheric pressure (1022 hPa) as determined by DSC and confirmed by the capillary method according to EU Method A.1. and OECD Test Guideline 102 under GLP.
Reference
Results of the DSC measurements are summarised in Table 1.
Table 1: Results of the DSC measurements
Measurement |
Sample weight [mg] |
Onset of effect [°C] |
Range of effect [°C] |
Weight loss [mg] |
Atmospheric pressure [hPa] |
1 |
8.28 |
163.45 183.67 - |
160-170 (endo) 180-240 (endo) 290-350 (exo) |
7.05 |
1022.8 |
2 |
7.93 |
163.46 183.71 |
160-170 (endo) 180-240 (endo) 290-350 (exo) |
6.70 |
1021.7 |
The test item showed a first small
endothermic effect in the temperature range of 160 – 170 °C and a second
larger endothermic effect in the temperature range of 180 – 240 °C. An
exothermic effect was detected in the temperature range of 290 – 350 °C.
No further thermal effects were observed up to the test end temperature
of 500 °C.
During the verification measurements with the capillary method it was
observed that the test item started to melt at approx. 180 °C. During
the melting process the formation of gas bubbles (foaming) was observed.
At 200 °C the test item was completely molten and had turned into a
clear yellow liquid.
The first endothermic effect is too small to be assigned to the melting of the test item which was verified optically by the capillary method. Therefore, the second endothermic effect is assigned to the melting process. As the onset temperatures in both measurements do not deviate by more than 0.5 K from their mean value of 183.69 °C, this temperature can be used as melting point.
The test item did not show a separate distinct endothermic signal which could be assigned to the boiling of the test item above the melting temperature of the test item. Nevertheless, gas formation directly following the melting process was observed by capillary method. However, the cause for the formation of gas can be based on a decomposition process of the test item instead of boiling. If the test item had been boiling the weight loss at the end of the DSC measurement would have been approx. 100 % instead of only approx. 85 %. This means that decomposition product probably remained as residue in the crucible. Furthermore, the liquid in the capillary had turned yellow at 200 °C. This indicates a chemical reaction at these temperatures.
In conclusion, the melting point of the test item was determined at 183.7 °C by DSC measurement and confirmed by the capillary method. The melting process is directly followed by a decomposition process accompanied by gas evolution.
Description of key information
The test item has a melting point of 183.7 °C at atmospheric pressure (1022 hPa) as determined by DSC and confirmed by the capillary method according to EU Method A.1. and OECD Test Guideline 102 under GLP.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 183.7 °C
Additional information
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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