Registration Dossier
Registration Dossier
Data platform availability banner - registered substances factsheets
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
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: - | 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:
- From 11 Aug 2020 to 17 Aug 2020
- 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:
- EU Method A.1 (Melting / Freezing Temperature)
- Version / remarks:
- 2016
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7200 (Melting Point / Melting Range)
- Version / remarks:
- 1998
- Deviations:
- no
- Principles of method if other than guideline:
- An additional investigation of the melting temperature of the test item was performed by placing two subsamples of the test item for 18 hours at -22.2 ± 1.8°C and at -83.5 ± 1.6°C respectively.
- GLP compliance:
- yes
- Type of method:
- differential scanning calorimetry
- Key result
- Melting / freezing pt.:
- > -90 - < 25 °C
- Decomposition:
- yes
- Decomp. temp.:
- ca. 200 °C
- Remarks on result:
- other: Multiple endothermic and crystallisation effects (DSC) between -90°C and 25°C but without a defined melting effect. The test item was observed to be a very viscous liquid, almost solid at ca. -22°C and a solid at ca. -83.5°C.
- Conclusions:
- The melting temperature of the substance is between -90°C and 25°C. The substance has no boiling point.
- Executive summary:
Differential Scanning Calorimetry was performed. The experiments were in accordance with EC A.1, OECD 102 and OPPTS 830.7200 (melting temperature). GLP-study.
Two DSC experiments were performed. Multiple endothermic and crystallisation effects were observed between -90°C and 25°C without a defined melting/freezing effect. An additional non-guideline experiment was performed in which samples were placed at ca. -20°C and ca. -80°C. The substance was observed to be a very viscous liquid, almost solid at ca. -22°C and a solid at ca. -84°C. Based on both DSC results and visual observation, the melting temperature of the test item was concluded to be between -90°C and 25°C.
Further heating in duplicate DSC experiments, resulted in endothermic and strong exothermic effects from 200°C onwards. Also significant weight loss from 250°C was noticed in a preliminary TGA experiment. Test sample appeared, after each DSC or TGA test, to be a black molten or charred residue. Overall, it was concluded that decomposition of the substance starts at ca. 200°C. Boiling of the substance was not observed below the decomposition temperature (i.e. at 200°C). The substance has no boiling point.
Reference
TGA RESULT
Starting at 250°C, the weight of the sample decreased significantly. At 336°C, the sample weight had decreased by 25%. After the experiment, a black charred residue remained in the sample container (original colour: black/brown). The change of the state of the test item indicated reaction and/or decomposition.
DSC RESULTS
Experiment 1 : During cooling multiple crystallisation and/or glass transition were observed (results are archived in the raw data). During heating multiple endothermic and crystallisation effects are observed between -90°C and 25°C. Between 50°C and 175°C endothermic effect was observed. The effect was most likely obtained due to the evaporation of impurities. Starting at 200°C an endothermic followed by an exothermic effect was observed. Based on the result of the pre-test, this effect was probably obtained due to reaction and/or decomposition of the test item. After the experiment, a black molten residue remained in the sample container (original colour: black/brown).
In order to investigate the endothermic effect starting at 200°C, a lower heating rate of 5°C/minute was applied in the Experiment 2. The value was similar to what was found in Experiment 1. The exothermic effect was significantly stronger. It demonstrated that reaction and/or decomposition of the test item was the reason for the exothermic effect. After the experiment, a black molten residue remained in the sample container.
STORAGE IN FREEZER FOLLOWED BY VISUAL OBSERVATION
It was observed after storage that the test item was a very viscous liquid, almost solid at -22.2 ± 1.8°C and a solid at -83.5 ± 1.6°C.
Description of key information
Differential Scanning Calorimetry (DSC) was performed in accordance with EC A.1, OECD 102 and OPPTS 830.7200 (melting temperature). Multiple endothermic and crystallisation effects were observed between -90°C and 25°C without a defined melting/freezing effect. Based on both DSC results and visual observation, the melting temperature of the test item was concluded to bebetween -90°C and 25°C.
Key value for chemical safety assessment
Additional information
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.