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Diss Factsheets
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EC number: 248-372-5 | CAS number: 27253-30-1
- 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:
- 2018-03-14 to 2018-05-07
- 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)
- 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, tightly closed container, dry
- Decomposition:
- yes
- Decomp. temp.:
- ca. 230 °C
- Remarks on result:
- other: no distinct phase transitions, melting and boiling can be derived
- Conclusions:
- Melting and Boiling Point:
Neither a melting nor a boiling of the test item could be definitely observed by differential scanning calorimetry according to Regulation EC No. 440/2008 Methods A.1./A.2 and OECD Test Guidelines 102/103 (1995) at atmospheric pressure (1012 hPa to 1016 hPa). The visual observation of the test item being heated in a test glass suggests that the test item softens but does not melt at approx. 60 °C and that it decomposes under gas formation at approx. 230 °C.
Based on the results and observations no distinct phase transitions, melting and boiling can be derived for the test item. A mass loss of ~86 % was observed.
Thermal Stability:
The test item showed an exothermic effect at 140 °C with an energy release of -80 J/g as observed in the differential scanning calorimetry measurements according to OECD Test Guideline 113 (1981).
Reference
Melting and Boiling Point (DSC and Measurement in Test Glass)
In both DSC runs endothermic effects were observed in the temperature ranges from -20 °C through 40 °C, from 70 °C through 180 °C, from 250 °C through 330 °C and from 360 °C through 600 °C. In both DSC runs no exothermic effect was detected.
Results of the DSC-measurements
No. |
Sample weight [mg] |
Onset of Effect |
Range of effect |
Weight loss |
Atmospheric pressure [hPa] |
PN15501 |
6.23 |
-7.52 |
-20 – 40 (endo) |
5.36 mg |
1012.5 |
PN15506 |
4.78 |
-14.23 |
-20 – 40 (endo) |
4.06 mg |
1016.2 |
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. At approx. 60 °C the test item started to soften but did not melt. At approx. 230 °C the colour of the test item changed to brown while small bubbles started to form.
Thermal stability (DSC)
An exothermic effect was observed starting from 140 °C with an energy release of >-80 J/g.
Results of the DSC-measurements
No. |
Sample weight [mg] |
Start of effect [°C] |
Energy* [J/g] |
PN15504 |
5.58 |
140 |
-80 (exothermic) |
PN15509 |
5.38 |
140 |
-60 (exothermic) |
*Negative energy for exothermic processes
Description of key information
Based on the DSC results and visual observations no distinct phase transitions, melting and boiling can be derived for the test item.
Key value for chemical safety assessment
Additional information
Melting and Boiling Point:
Neither a melting nor a boiling of the test item could be definitely observed by differential scanning calorimetry according to Regulation EC No. 440/2008 Methods A.1./A.2 and OECD Test Guidelines 102/103 (1995) at atmospheric pressure (1012 hPa to 1016 hPa).
The visual observation of the test item being heated in a test glass suggests that the test item softens but does not melt at ~60 °C and that it decomposes under gas formation at ~230 °C.
Based on the results and observations no distinct phase transitions, melting and boiling can be derived for the test item. A mass loss of ~86 % was observed.
Thermal Stability:
The test item showed an exothermic effect at 140 °C with an energy release of -80 J/g as observed in the differential scanning calorimetry measurements according to OECD Test Guideline 113 (1981).
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