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EC number: 258-380-0 | CAS number: 53126-67-3
- 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:
- 2018-02-22 to 2018-03-20
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7200 (Melting Point / Melting Range)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- differential scanning calorimetry
- Key result
- Melting / freezing pt.:
- >= -20 - <= 8 °C
- Atm. press.:
- 1 013.25 hPa
- Decomposition:
- yes
- Decomp. temp.:
- > 230 °C
- Conclusions:
- The melting range of the test item was determined to be in range from -20 to 8 °C.
- Executive summary:
A study was conducted according to OECD test guideline 102, Regulation (EC) No 440/2008 method A.1 and EPA OCSPP test guideline 830.7200 to determine the melting point of the test item using differential scanning calorimetry. The test item was weighed out into an aluminium crucible under an inert atmosphere (nitrogen). Two tests with about 11 – 17 mg of the test item were performed. As reference crucible, an empty aluminium crucible was used. The substance is a liquid at ambient conditions. The crucibles were cooled down to approx. -80 K at a constant cooling rate of 0.25 K/min. Subsequently, the temperature was increased up to 500 °C at a constant heating rate of 10 K/min under an inert atmosphere. During the cooling phase, no thermic effect could be observed in the DSC-measurements. During the subsequent heating phase four and five, respectively, broad endothermic effects were observed, which can’t be clearly assigned to a melting or boiling of the test item. Thus, the test item was additionally investigated in a test tube.Combining the results of the measurements, the first endothermic effect in the DSC can be assigned to the softening and melting of the test item. Since, the effect is very broad, and the test item was solid in the test tube at -20.3 °C, the melting range of the test item was determined to be in range from -20 to 8 °C.
Reference
In the temperature ranges of -70 - 30 °C, 60 - 210 °C, 220 – 320 °C and 370 - 410 °C, four and five, respectively, endothermic effects were observed.
Results of the DSC-measurements
No. |
Sample weight / mg |
Onset of Effect / °C |
Range of effect / °C |
Weight loss / mg |
Atmospheric pressure / hPa |
Remark |
PN15006 |
16.74 |
-23.96 |
30 – 80 (endo) |
11.13 |
1006.6 |
|
PN15108 |
10.92 |
-28.93 |
-70 – 30 (endo) |
7.23 |
979.8 |
|
During the cooling phase, no thermic effect could be observed in the DSC-measurements. During the subsequent heating phase four and five, respectively, broad endothermic effects were observed, which can’t be clearly assigned to a melting or boiling of the test item. Thus, the test item was additionally investigated in a test tube.
The test tube with the test item was cooled with liquid nitrogen. The temperature measurement could be started at -20.3 °C. At this temperature, the test item was solid. During the warming up, it could be observed that the test item melted at a temperature of 7.6 °C and boiled at 112.7 °C. At 121.3 °C the test item evaporated. The measurement was stopped at 143.2 °C.
Combining the results of the measurements, the first endothermic effect in the DSC can be assigned to the softening and melting of the test item. Since, the effect is very broad, and the test item was solid in the test tube at -20.3 °C, the test item has a melting range of approx. ‑20 to 8 °C.
The second endothermic signal in the temperature range of 60 to 210 °C can be assigned to the boiling of the test item. The visual observed boiling of the test item in the test tube was in good correlation with the onset temperatures of the DSC-measurements. As the onset temperatures in both tests deviate by more than 0.5 K from their mean value of 112.16 °C, the test item has a boiling range of 111 to 113 °C.
The other two to three endothermic effects in the DSC may be caused by the evaporation of the test item.
Description of key information
The melting range of the test item was determined to be in range from -20 to 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 and EPA OCSPP test guideline 830.7200 to determine the melting point of the test item using differential scanning calorimetry. The test item was weighed out into an aluminium crucible under an inert atmosphere (nitrogen). Two tests with about 11 – 17 mg of the test item were performed. As reference crucible, an empty aluminium crucible was used. The substance is a liquid at ambient conditions. The crucibles were cooled down to approx. -80 K at a constant cooling rate of 0.25 K/min. Subsequently, the temperature was increased up to 500 °C at a constant heating rate of 10 K/min under an inert atmosphere. During the cooling phase, no thermic effect could be observed in the DSC-measurements. During the subsequent heating phase four and five, respectively, broad endothermic effects were observed, which can’t be clearly assigned to a melting or boiling of the test item. Thus, the test item was additionally investigated in a test tube.Combining the results of the measurements, the first endothermic effect in the DSC can be assigned to the softening and melting of the test item. Since, the effect is very broad, and the test item was solid in the test tube at -20.3 °C, the melting range of the test item was determined to be in range from -20 to 8 °C.
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