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Diss Factsheets
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EC number: 254-259-1 | CAS number: 39049-04-2
- 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:
- 2018-04-03 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
- Atm. press.:
- 1 004.1 hPa
- Decomposition:
- ambiguous
- Decomp. temp.:
- ca. 365 °C
- Remarks on result:
- other: no distinct melting/boiling point could be observed
- 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 Method A.1./A.2 and OECD Test Guidelines 102/103 (1995) at atmospheric pressure (1004 hPa) as well as by visual observation of the test item being heated in a test glass. The test substance decomposes with a mass loss of ~55 % starting at 365 °C before melting and boiling.
Thermal Stability:
The test item showed an exothermic effect starting at 470 °C with an energy release of -240 J/g and another exothermic effect starting at 560 °C with an energy release of > -60 J/g according to 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 exothermic effects were observed in the temperature ranges from 100 °C through 180 °C (energy release: -10 J/g) and from 220 °C through 350 °C (energy release: -30 J/g). Apart from that, an endothermic effect was detected in the temperature range from 370 °C through 520 °C
Results of the DSC-measurements
No. |
Sample weight [mg] |
Onset of Effect [°C] |
Range of effect [°C] |
Weight loss |
Atmospheric pressure [hPa] |
PN15380 |
12.55 |
100 |
100 – 180 (exo) |
6.78 mg 54 % |
1004.1 |
PN15381 |
13.74 |
100 |
100 – 180 (exo) |
7.57 mg 55 % |
1004.1 |
During the heating phase one endothermic effect was observed in the temperature range of 380 – 520 °C, which cannot be assigned to the melting of the test item, because exothermic effects are observed previously at 100 °C and 220 °C. Thus, no melting or boiling of the test item could be detected up to approx. 100 °C under atmospheric pressure.
For verification of the DSC results the test item was additionally tested in a test glass. At ~170 °C, white mist started to develop at the surface of the test item. At ~365 °C the colour of the test item changed to light brown-black and the test item clumped strongly together. No melting or boiling was observed in the temperature range from -45 °C up to 365 °C.
Thermal stability (DSC)
Starting at a temperature of 470 °C an exothermic effect with an energy release of -240 J/g was observed. Apart from that, a second exothermic effect starting at 560 °C with an energy release of >-60 J/g was observed in DSC run PN15336. This effect was not found in PN15335 where the crucible burst at approx. 550 °C.
Results of the DSC-measurements
No. |
Sample weight [mg] |
Start of effect [°C] |
Energy* [J/g] |
PN15335 |
6.68 |
470 |
-240 (exothermic) |
PN15336 |
7.50 |
470 560 |
-120 (exothermic) > -60 (exothermic) |
*Negative energy for exothermic processes
Description of key information
The test substance decomposes with a mass loss of ~55 % starting at approx. 365 °C before melting and boiling.
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 Method A.1./A.2 and OECD Test Guidelines 102/103 (1995) at atmospheric pressure (1004 hPa) as well as by visual observation of the test item being heated in a test glass.
The test substance decomposes with a mass loss of ~55 % starting at approx. 365 °C before melting and boiling.
Thermal Stability:
The test item showed an exothermic effect starting at 470 °C with an energy release of > -240 J/g and another exothermic effect starting at 560 °C with an energy release of > -60 J/g according to the differential scanning calorimetry measurements according to OECD Test Guideline 113 (1981).
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