Registration Dossier
Registration Dossier
Diss Factsheets
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 947-377-6 | CAS number: -
- 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:
- 26 September - 23 October 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Justification for type of information:
- The study was conducted according to an internationally recognised method, and under GLP. The substance is considered to be adequately characterised. Therefore full validation applies.
- 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
- Principles of method if other than guideline:
- Not applicable
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- GLP compliance programme (inspected on 13-14 October 2014 / signed on 8 April 2015)
- Type of method:
- capillary method
- Remarks:
- and DSC method
- Key result
- Melting / freezing pt.:
- >= 122.2 - <= 127.2 °C
- Decomposition:
- ambiguous
- Decomp. temp.:
- ca. 99.1 °C
- Conclusions:
- The melting range was determined as 122.2°C to 127.2 °C (395.4 K to 400.4 K) with potential degradation of the substance at about 99.1°C.
We note that the test item was flowable only at 185 °C, which can be due to the viscosity of the substance. - Executive summary:
A study was conducted under GLP according to EU Method A.1 and OECD 102 to determine the melting point /range of the substance.
Capillary pre-test and DSC measurements were performed to determine the method to be used to determine the melting point/range of the substance.
Finally two independant determinations were conducted using the capillary method and the mean values were used to determine the melting range of the substance.
Reference
Results
Pre-test for melting range following capillary method
The test item melted to a slightly yellow sticky mass between 110.1 and 120.7°C . Heating was performed up to 140 °C and the test item was more transparent.
Test for melting range following DSC method
DSC measurements showed only an endothermic increase in the heat flow at 359.53 °C. After the test the crucible was visually unchanged, the crucible was opened and a very small amount of whitely to yellow discolored residue was visible. However, no melting point/range can be determined using this method.
Finally, the determination of Melting Point was conducted using the Capillary Method.
Main test for melting range following capillary method
Melting point/range:
Melting point/range |
Begin |
End |
First Determination |
122.1 °C (395.3 K) |
127.0 °C (400.2 K) |
Second Determination |
122.2 °C (395.4 K) |
127.3 °C (400.5 K) |
Observations Melting Point with the Capillary Method
Observations |
First determination |
Second determination |
Comments |
Instantly together shrivelled |
99.2 |
99.1 |
Shrivel of the test item at 99 °C may be considered as a moisture, because the test item was not dried before determination or as a sign of decomposition of the substance. |
Getting yellowish |
119.2 |
119.1 |
The yellowish discolouring at 119 °C may be considered as a sign of decomposition and it might be a reaction of the test item because of the moisture as well. |
Started to melt |
122.1 |
122.2 |
The substance is not flowable at these temperatures. |
Not yet together flowed- Supposed end of melting process |
127.0 |
127.3 |
The substance is not flowable at these temperatures. |
Together flowed |
185 |
- |
The test item had flowed together at 185 °C only, which may be due to the viscous character of the test item. |
Further heating for information purpose, boiling in capillary was visible |
234 |
- |
|
After cooling down the test item solidified as brown mass.
Melting range: 122.2 °C to 127.2 °C (395.4 K to 400.4 K) (mean of two independent determinations.
Standard deviation: 0.07 (begin); 0.21 (end)
Estimated accuracy: ± 0.3 °C
We noted potential degradation of the substance starting from 99.1 °C.
Validity
The“difference between duplicate determinations” was 0.3K (< 0.5K). Then the validity criterion was met.
The "difference between begin and end of melting process" was 5.0K (>0.5K). Then , the validity criterion to define a melting point was not met and a melting range was stated. As the test item is a UVCB substance, this is considered as normal.
Description of key information
The melting range was determined as 122.2°C to 127.2 °C (395.4 K to 400.4 K) with potential degradation of the substance starting from about 99.1 °C
We note that the test item was flowable only at 185 °C, which can be due to the viscosity of the substance.
Key value for chemical safety assessment
Additional information
A fully reliable GLP experimental study, conducted according to a recognized OECD/EC guidelines using capillary method, is available.
It is considered as a key study. The result is retained as key data.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
