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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
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EC number: 919-489-5 | 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
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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:
- 2015-05-13 to 2015-12-18
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7200 (Melting Point / Melting Range)
- Deviations:
- no
- GLP compliance:
- no
- Remarks:
- The study was conducted under supervision of a quality assurance unit which had ensured e.g instrumentation validation, reagent/materials certification, analyst certification and providing standard operating procedures.
- Type of method:
- differential scanning calorimetry
- Key result
- Melting / freezing pt.:
- >= -40 - <= -37 °C
- Atm. press.:
- >= 1 005 - <= 1 014 hPa
- Decomposition:
- no
- Sublimation:
- no
- Conclusions:
- The melting point of the test item was determined to bein range from -42 to -37 °C at 1005 and 1014 hPa.
- Executive summary:
A study was conducted according to OECD test guideline 102, Regulation (EC) No 440/2008 method A.1 and EPA OCSPP test guideline 830.7200 to determine the melting point of the test item using differential scanning calorimetry. The test item was weighed out into an aluminium crucible under an inert atmosphere (nitrogen). Two tests with about 7 - 13 mg of the test item were performed. As reference crucible, an empty aluminium crucible was used. The substance is a liquid at ambient conditions. Therefore the crucibles were cooled down from ambient temperature to -100 °C with a constant cooling rate of 0.25 K/min under an inert atmosphere. After a waiting period of 30 min at -100 °C, the temperature was increased up to 500 °C at a constant heating rate of 10 K/min. In the temperature range of -60 to -10 °C, an endothermic effect (melting) was observed. As the onset temperatures in both tests deviate by more than 0.5 K from their mean value of -39.18 °C, a melting range of -42 to -37 °C was determined.
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2015-05-13 to 2015-05-19
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7200 (Melting Point / Melting Range)
- Deviations:
- no
- GLP compliance:
- no
- Remarks:
- The study was conducted under supervision of a quality assurance unit which had ensured e.g instrumentation validation, reagent/materials certification, analyst certification and providing standard operating procedures.
- Type of method:
- thermal analysis
- Key result
- Melting / freezing pt.:
- -34.7 °C
- Atm. press.:
- 1 013.25 hPa
- Decomposition:
- no
- Sublimation:
- no
- Conclusions:
- The melting point of the test item was determined to be -34.7 °C at 1013.25 hPa.
- Executive summary:
A study was conducted according to OECD test guideline 102, Regulation (EC) No 440/2008 method A.1 and EPA OCSPP test guideline 830.7200 to determine the melting point of the test item using differential scanning calorimetry. The test item was weighed out into an aluminium crucible under an inert atmosphere (nitrogen). Two tests with about 9 - 10 mg of the test item were performed. As reference crucible, an empty aluminium crucible was used. The substance is a liquid at ambient conditions. Therefore the crucibles were cooled down from ambient temperature to -50 °C with a constant cooling rate of 0.25 K/min under an inert atmosphere. After a waiting period of 30 min at -100 °C, the temperature was increased up to 500 °C at a constant heating rate of 10 K/min. In the temperature range of -50 to -10 °C, an endothermic effect (melting) was observed. The onset temperatures in both tests did not deviate by more than 0.5 K from their mean value of -34.74 °C. Thus, this temperature was determined as melting point of the test item.
Referenceopen allclose all
During the cooling phase, an exothermal effect was observed at a temperature of approx. -40 °C, which was associated with the freezing of the test item. During the subsequent heating phase a distinct endothermic effect was observed in the temperature range of -60 to -10 °C, which was associated with the melting of the test item. As the onset temperatures in both tests deviate by more than 0.5 K from their mean value of -39.18 °C, a melting range of -42 to -37 °C was determined.
Sample weight / mg
|
Onset of Effect / °C
|
Range of effect / °C
|
Weight loss / mg
|
Atmospheric pressure / hPa
|
6.58 |
-36.8 |
-55 to -10 (endo) |
6.73 |
1005.8 |
13.32 |
-41.56 |
-60 to -10 (endo) |
13.08 |
1013.7 |
During the cooling phase, an exothermal effect was observed at a temperature of approx. -50 °C, which was associated with the freezing of the test item. During the subsequent heating phase a distinct endothermic effect was observed in the temperature range of -50 to -10 °C, which was associated with the melting of the test item. The onset temperatures in both tests did not deviate by more than 0.5 K from their mean value of -34.74 °C. Thus, this temperature was determined as melting point.
Sample weight / mg
|
Onset of Effect / °C
|
Range of effect / °C
|
Weight loss / mg
|
Atmospheric pressure / hPa
|
8.80 |
-34.58 |
-45 to -10 (endo) |
8.77 |
1005.2 |
9.79 |
-34.90 |
-50 to -15 (endo) |
9.71 |
996.7 |
Description of key information
The melting point was determined to be in range from -40 to -37 °C for Composition A and -34.7 °C at 1013.25 hPa for Composition B.
Key value for chemical safety assessment
Additional information
Isomeric Composition A
A study was conducted according to OECD TG 102 to determine the melting point of the test item using differential scanning calorimetry. The onset temperatures in both tests deviate by more than 0.5 K from their mean value of -39.18 °C, thus a melting range of -42 to -37 °C was determined.
Isomeric Composition B
A study was conducted according to OECD TG 102 to determine the melting point of the test item using differential scanning calorimetry. The melting point of the test item was determined as mean of two independent measurements which did not deviate by more than 0.5 K from the mean value of -34.74 °C. Thus, this temperature was determined as melting point.
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.
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