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EC number: 243-478-8 | CAS number: 20039-37-6
- 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:
- supporting study
- Study period:
- 2009-03-24
- 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
- GLP compliance:
- no
- Type of method:
- differential scanning calorimetry
- Key result
- Melting / freezing pt.:
- > 142.9 - < 161.7 °C
- Decomposition:
- yes
- Decomp. temp.:
- > 162.2 - < 290.2 °C
- Sublimation:
- no
- Conclusions:
- The melting point of the test item was determined with DSC to be in the range of 142.9 - 161.7 °C followed by a decomposition in the range of 162.2 - 290.2 °C.
- Executive summary:
According to OECD 102 and EU Method A.1 the melting point of the test item was determined using differential scanning calorimetry (DSC) method. 11.3 mg of the test item were weighed in and heated with a heating rate of 5 °C/min up to 400 °C. Two peaks were observed - an endothermic peak at 143 - 162 °C and an exothermic peak at 162 - 290 °C. The melting point of the test item was determined with DSC to be in the range of 142.9 - 161.7 °C followed by a decomposition in the range of 162.2 - 290.2 °C.
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2009-04-01
- 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
- GLP compliance:
- no
- Type of method:
- differential scanning calorimetry
- Key result
- Melting / freezing pt.:
- 154.2 °C
- Decomposition:
- yes
- Decomp. temp.:
- ca. 246.1 °C
- Sublimation:
- no
- Conclusions:
- The melting point of the test item was determined with DSC to be 154.2 °C followed by a rapid decomposition at ca. 246.1 °C.
- Executive summary:
According to OECD 102 and EU Method A.1 the melting point of the test item was determined using differential scanning calorimetry (DSC) method. 5.1 mg of the test item were weighed in 40 µL disposable crucible and heated with a heating rate of 5 °C/min up to 400 °C. Two peaks were observed - an endothermic peak at 140 - 165 °C and an exothermic peak at 212 - 319 °C. The melting point of the test item was determined with DSC to be 154.2 °C followed by a rapid decomposition at ca. 246.1 °C.
Referenceopen allclose all
Table
1. Results from the DSC measurement
Thermal Event |
EXO or ENDO | Onset Temperature [°C] |
Final Temperature [°C] |
Peak Temperature [°C] |
Heat of Reaction [J/G] |
Comment |
1 |
ENDO |
142.9 |
161.7 |
NA |
-131.85 |
Slow initial onset, then rapid adsorption and short duration |
2 |
EXO |
162.2 |
290.2 | NA |
1685.96 |
Initially slow onset, then rapid decomposition. |
Table
1. Results from the DSC measurement
Thermal Event |
EXO or ENDO | Onset Temperature [°C] |
Final Temperature [°C] |
Peak Temperature [°C] |
Heat of Reaction [J/G] |
Comment |
1 |
ENDO |
140.1 |
164.5 |
154.2 |
-65.53 |
Rapid onset, short duration |
2 |
EXO |
211.9 |
318.8 | 246.1 |
1105.51 |
Initially slow onset, at 220 °C becomes rapid. |
Description of key information
The melting point of the test item was determined with DSC to be 154.2 °C followed by a rapid decomposition at ca. 246.1 °C (reference 4.2-1).
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 154.2 °C
Additional information
Key study
According to OECD 102 and EU Method A.1 the melting point of the test item was determined using differential scanning calorimetry (DSC) method. 5.1 mg of the test item were weighed in 40 µL disposable crucible and heated with a heating rate of 5 °C/min up to 400 °C. Two peaks were observed - an endothermic peak at 140 - 165 °C and an exothermic peak at 212 - 319 °C. The melting point of the test item was determined with DSC to be 154.2 °C followed by a rapid decomposition at ca. 246.1 °C (reference 4.2-1).
Supporting study
In a supporting study performed cccording to OECD 102 and EU Method A.1 the melting point of the test item was determined using differential scanning calorimetry (DSC) method. 11.3 mg of the test item were weighed in and heated with a heating rate of 5 °C/min up to 400 °C. Two peaks were observed - an endothermic peak at 143 - 162 °C and an exothermic peak at 162 - 290 °C. The melting point of the test item was determined with DSC to be in the range of 142.9 - 161.7 °C followed by a decomposition in the range of 162.2 - 290.2 °C. No peak temprature was determined for the two observed effects but a general idea of the melting properties of the test item could be obtained from this measurement (reference 4.2-2).
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