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Diss Factsheets
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EC number: 269-634-5 | CAS number: 68308-19-0
- 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:
- 2018-04-09 to 2018-09-18
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Reason / purpose for cross-reference:
- reference to same 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)
- Version / remarks:
- 2008
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: Thermal Stability (OECD 113)
- Version / remarks:
- 1981
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- signed 2017-02-28
- Type of method:
- differential scanning calorimetry
- Specific details on test material used for the study:
- Storage Conditions: Room temperature, sealed container
- Melting / freezing pt.:
- >= -30 - <= 0 °C
- Atm. press.:
- >= 1 002 - <= 1 012.6 hPa
- Decomposition:
- yes
- Decomp. temp.:
- >= 190 °C
- Sublimation:
- no
- Conclusions:
- Melting and Boiling Point:
In the differential scanning calorimetry measurements according to Regulation EC No. 440/2008 Methods A.1./A.2. and OECD Test Guidelines 102/103 (1995) at atmospheric pressure (1002.0 and 1012.6 hPa) endothermic effects were observed in the temperature ranges from -30 °C to 0 °C, from 40 °C to 120 °C, from 140 °C to 250 °C, from 250 °C to 320 °C and from 430 °C to 600 °C.
The visual observation of the test item being heated in a test glass gave that the test item liquefied at approx. -10 °C and that small bubbles started to form and to rise in the test glass at approx. 200 °C.
Based on the results and observations, it may be assumed that the test item has a melting range between -30 °C and 0 °C and decomposes before boiling at temperatures ≥ 190 °C.
Thermal Stability:
The test item showed an endothermic effect starting at 190 °C, but no exothermic effects up to a temperature of 420 °C. At 420 °C the DSC signal showed a high noise so that the thermograms above this temperatures cannot be interpreted without doubt.
Reference
Melting and Boiling Point (DSC and Measurement in Test Glass)
In both DSC runs endothermic effects were observed in the temperature ranges from -30 °C to 0 °C, from 40 °C to 120 °C, from 140 °C to 250 °C, from 250 °C to 320 °C and from 430 °C to 600 °C. In both DSC runs no exothermic effect was detected.
Results of the DSC-measurements
No. |
Sample weight [mg] |
Onset of Effect [°C] |
Range of effect [°C] |
Weight loss |
Atmospheric pressure [hPa] |
PN15493 |
7.89 |
-33.93 |
-30 – 0 (endo) |
6.92 mg 88 % |
1002.0 |
PN15495 |
16.18 |
-32.48 |
-30 – 0 (endo) |
14.21 mg 88 % |
1012.6 |
It is not possible to assign any of the observed endothermic effects definitely to melting or boiling of the test item.
For verification of the DSC results the test item was additionally tested in a test glass. Liquefaction of the test item was observed at approx. -10 °C. At approx. 200 °C small bubbles started to form and to rise in the test glass. The temperature of the test glass was not increased further.
Thermal stability (DSC)
An endothermic effect was observed starting at 190 °C. At 420 °C the DSC signal showed a high noise so that the thermograms at temperatures above 420 °C cannot be interpreted without doubt.
Results of the DSC-measurements
No. |
Sample weight [mg] |
Start of effect [°C] |
Energy* [J/g] |
PN15417 |
11.71 |
190 |
20 (endothermic) |
PN15503 |
14.10 |
190 |
20 (endothermic) |
* Positive energy for endothermic processes
Description of key information
No distinct phase transitions, melting and boiling can be derived for the test item. It may be assumed that the test item has a melting range between -30 °C and 0 °C and decomposes before boiling at temperatures ≥ 190 °C.
Key value for chemical safety assessment
Additional information
Melting and Boiling Point:
In the differential scanning calorimetry measurements according to Regulation EC No. 440/2008 Methods A.1./A.2. and OECD Test Guidelines 102/103 (1995) at atmospheric pressure (1002.0 - 1012.6 hPa) endothermic effects were observed in the temperature ranges from -30 °C to 0 °C, from 40 °C to 120 °C, from 140 °C to 250 °C, from 250 °C to 320 °C and from 430 °C to 600 °C.
The visual observation of the test item being heated in a test glass gave that the test item liquefied at approx. -10 °C and that small bubbles started to form and to rise in the test glass at approx. 200 °C.
Based on the results and observations, it may be assumed that the test item has a melting range between -30 °C and 0 °C and decomposes before boiling at temperatures ≥ 190 °C.
Thermal Stability:
The test item showed an endothermic effect starting at 190 °C, but no exothermic effects up to a temperature of 420 °C. At 420 °C the DSC signal showed a high noise so that the thermograms above this temperatures cannot be interpreted without doubt.
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