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Diss Factsheets
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EC number: 936-610-7 | 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:
- 24 April 2008 and 19 September 2008
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Study conducted in compliance with GLP and agreed protocols, with no or minor deviations from standard test guidelines and/or minor methodological deficiencies, which do not affect the quality of relevant results.
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- Date of Signature: 15/10/2007; Date of Inspection: 21/08/2007
- Type of method:
- capillary method
- Melting / freezing pt.:
- 448 K
- Atm. press.:
- other: Not stated
- Decomposition:
- yes
- Decomp. temp.:
- > 448 K
- Sublimation:
- no
- Melting / freezing pt.:
- 438 K
- Atm. press.:
- other: Not stated
- Decomposition:
- yes
- Decomp. temp.:
- > 438 K
- Sublimation:
- no
- Conclusions:
- The test material has been determined to melt with decomposition from 438 to 508K.
- Executive summary:
The melting point/freezing point determination for the test material was carried out using the capillary method/melting temperature devices with liquid bath, Method A1 of Commission Directive 92/69/EEC (which constitutes Annex V of Council Directice 67/548/EEC.
The test material has been determined to melt with decomposition from 438 to 508K.)
Reference
Preliminary Test
The preliminary test indicated that the test material started to melt with decomposition at approximately 473K.
Definitive Test
The temperatures shown in the following tables are those of the liquid bath.
Determination 1
Temperature (K) | Observations |
323 | White Powder |
393 | Condensation. The test material had become a waxy solid |
448 | The test material had started to shrink. |
460 | The test material had started to become discoloured. |
478 | The test material had started to liquefy. |
498 | The test material had turned into a white foam, with brown foam on the surface and brown liquid at the bottom. |
513 | The foam breaks down to a brown liquid. |
531 | The test material was an opaque liquid with a brown surface |
Determination 2
Temperature (K) | Observations |
328 | White powder |
333 | The test material was sticking to the side of the tube. |
400 | Condensation |
438 | The test material had started to shrink. |
458 | The test material started to become discoloured |
478 | The test material had turned into a white foam |
508 | The test material was a brown liquid with some foam. |
531 | The test material was a brown opaque liquid. |
Discussion
The test material went through several stages of physical change during the test. The test material became waxy at approximately 333K, the start of melting (indicated by shrinkage) started at approximately 438K, decomposition started at 458K and the end of melting was at approximately 508K.
A preliminary test was performed using the DSC under air and nitrogen atmospheres to give an assessment of thermographic profiles including whether any decomposition observed may be due to thermal or oxidative. Similar endotherms were obtained using air and nitrogen atmospheres, indicating that no oxidative decomposition occurred. An additional DSC showed an endotherm starting at ambient to approximately 70°C corresponding to the test material becoming waxy and an endotherm at approximately 209°C corresponding to melting with decomposition. The DSC thermogram was consistent with the observations made in the liquid bath experiment.
Description of key information
438 to 508 K (164.85 to 234.85 °C), decomposes with melting, EU method A.1, Butler & White (2008)
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 164.85 °C
Additional information
The melting point of the test material was determined in accordance with EU method A.1 under GLP conditions in the key study (Butler & White 2008). The study was performed using the capillary method. Under the conditions of the test, the test material was found to melt with decomposition from 438 to 508 K. The study was assigned a reliability score of 1 in accordance with the criteria for assessing data quality outlined in Klimisch et al. (1997).
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