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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 269-044-8 | CAS number: 68186-64-1
- 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:
- 2018-02-27 to 2018-03-23
- 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:
- yes (incl. QA statement)
- Type of method:
- differential scanning calorimetry
- Key result
- Melting / freezing pt.:
- >= -50 - <= 0 °C
- Atm. press.:
- >= 997 - <= 998 hPa
- Decomposition:
- yes
- Decomp. temp.:
- >= 229 °C
- Conclusions:
- The melting range of the substance was determined to be -50 °C to 0 °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 11 – 16 mg of the test item were performed. As reference crucible, an empty aluminium crucible was used. In the temperature ranges of -50 to -0 °C, 40 to 160 °C, 170 to 220 °C and 220 to 300 °C, four endothermic effects were observed.During the cooling phase, no thermic effect could be observed in the DSC-measurements. During the subsequent heating phase a first endothermic effect was observed in the temperature range of -50 to 0 °C, which can be assigned to the softening of the test item. Thus, it was concluded that the test item has a melting range of -50 °C to 0°C at 1013.25 hPa.
Reference
In the temperature ranges of -50 to -0 °C, 40 to 160 °C, 170 to 220 °C and 220 to 300 °C, four endothermic effects were observed.
Results of the DSC-measurements
No. |
Sample weight / mg |
Onset of Effect / °C |
Range of effect / °C |
Weight loss / mg |
Atmospheric pressure / hPa |
Remark |
PN15141 |
15.57 |
-13.97 |
-50 – 0 (endo) |
11.46 |
996.5 |
|
PN15197 |
11.27 |
-12.60 |
-40 – 0 (endo) |
8.50 |
997.8 |
|
During the cooling phase, no thermic effect could be observed in the DSC-measurements. During the subsequent heating phase a first endothermic effect was observed in the temperature range of -50 to 0 °C, which can be assigned to the softening of the test item. Three further endothermic effects were observed, which can’t be clearly assigned to a boiling of the test item. Thus, the test item was additionally investigated by means of the capillary method.
Therefore, three capillaries were filled with the test item up to a height of 5 mm. The capillaries were heated up from 25 °C to 300 °C with a constant heating rate of 10 K/min in the Stuart melting point apparatus. The test item was visually inspected while increasing the temperature.
At a temperature of 164.2 °C the test item started to boil. At 173.3 °C the appearance of the test item changed to cloudy and greyish. At 229.0 °C the colour of the test item changed to white. This was considered as indication for start of decomposition.
Description of key information
The melting range of the substance was determined to be -50 °C to 0 °C at 997 - 998 hPa.
Key value for chemical safety assessment
Additional information
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 11 – 16 mg of the test item were performed. As reference crucible, an empty aluminium crucible was used. In the temperature ranges of -50 to -0 °C, 40 to 160 °C, 170 to 220 °C and 220 to 300 °C, four endothermic effects were observed.During the cooling phase, no thermic effect could be observed in the DSC-measurements. During the subsequent heating phase a first endothermic effect was observed in the temperature range of -50 to 0 °C, which can be assigned to the softening of the test item. Thus, it was concluded that the test item has a melting range of -50 °C to 0°C at 997 - 998 hPa.
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.