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Diss Factsheets
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EC number: 268-439-2 | CAS number: 68084-48-0
- 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 2018-09-14
- 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.:
- >= -40 - <= -10 °C
- Decomposition:
- yes
- Decomp. temp.:
- >= 100 °C
- Remarks on result:
- other: the test item decomposes while boiling
- Conclusions:
- Melting and Boiling Point:
In the differential scanning calorimetry measurements according to Regulation EC No. 440/2008 Method A.1./A.2. and OECD Test Guidelines 102/103 (1995) at atmospheric pressure (991 hPa) endothermic effects were observed in the temperature ranges from -40 °C through -20 °C, from 180 °C through 270 °C and from 460 °C through 580 °C. A mass loss of ~85 % was observed.
The visual observation of the test item being heated in a test glass gave that the test item starts to liquefy at approx. -10 °C and that small bubbles started to form and to rise in the test glass at approx. 100 °C.
Based on the results and observations, it may be assumed that the test item liquefies between -40 and -10 °C and decomposes while boiling at temperatures ≥ 100 °C.
Thermal Stability:
The test item showed two endothermic effects, but no exothermic effects up to a temperature of 340 °C in the differential scanning calorimetry measurements according to OECD Test Guideline 113 (1981). The first endothermic effect started at 150 °C, 190 °C resp. and the second at 210 °C. The DSC signal showed a high noise above 340 °C so that the thermograms above this temperature 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 -40 °C through -20 °C, from 180 °C through 270 °C and from 460 °C through 590 °C. A mass loss of ~85 % was observed.
Results of the DSC-measurements
No. |
Sample weight [mg] |
Onset of Effect [°C] |
Range of effect [°C] |
Weight loss |
Atmospheric pressure [hPa] |
PN15517 |
21.43 |
-37.31 |
-40 – -20 (endo) |
18.46 mg |
1012.1 |
PN15531 |
8.57 |
-72.62 |
-40 – 20 (endo) |
7.30 mg |
1002.1 |
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. -10 °C the test item started to liquefy. At approx. 100 °C small bubbles started to form and to rise in the test glass. Then the test was aborted.
Note that the results of the DSC measurements and of the measurements in the test glass are not in accordance with each other.
Thermal stability (DSC)
Two endothermic effects starting at approx. 150 °C - 190 °C and at 210 °C were observed. Around 340 °C the DSC signal showed a high noise so that the thermograms above this temperatures cannot be interpreted without doubt.
It can be estimated that the test item decomposes at approx. 200 °C.
Results of the DSC-measurements
No. |
Sample weight [mg] |
Start of effect [°C] |
Energy* [J/g] |
PN15518 |
6.25 |
150 |
30 (endothermic) |
PN15420 |
8.88 |
190 |
10 (endothermic) |
* Positive energy for endothermic processes
Description of key information
Based on the results and observations, it may be assumed that the test item liquefies between -40 and -10 °C and decomposes while boiling at temperatures ≥ 100 °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 Method A.1./A.2. and OECD Test Guidelines 102/103 (1995) at atmospheric pressure (991 hPa) endothermic effects were observed in the temperature ranges from -40 °C through -20 °C, from 180 °C through 270 °C and from 460 °C through 580 °C. A mass loss of ~85 % was observed.
The visual observation of the test item being heated in a test glass gave that the test item starts to liquefy at approx. -10 °C and that small bubbles started to form and to rise in the test glass at approx. 100 °C.
Based on the results and observations, it may be assumed that the test item liquefies between -40 and -10 °C and decomposes while boiling at temperatures≥100 °C.
Thermal Stability:
The test item showed two endothermic effects, but no exothermic effects up to a temperature of 340 °C in the differential scanning calorimetry measurements according to OECD Test Guideline 113 (1981). The first endothermic effect started at 150 °C, 190 °C resp. and the second at 210 °C. The DSC signal showed a high noise above 340 °C so that the thermograms above this temperature cannot be interpreted without doubt.
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