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Diss Factsheets
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EC number: 474-870-9 | 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:
- 25 April 2007 to 23 August 2007
- 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:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- thermal analysis
- Remarks:
- differential scanning calorimetry (DSC) confirmed by capillary method
- Melting / freezing pt.:
- > 500 °C
- Decomposition:
- yes
- Decomp. temp.:
- 160 °C
- Remarks on result:
- other: No melting of the test item until the beginning of the exothermic decomposition between 160 and 500°C
- Conclusions:
- No melting of the test item until the beginning of the exothermic decomposition at a temperature of 160 °C was observed.
- Executive summary:
The purpose of this study was the determination of the melting point of the test item according to the consolidated version of Council Directive 67/548/EEC Annex V (Council Directive 92/69/EEC), Part A: Methods for the determination of physico-chemical properties A.1. Melting point / melting range (DSC) and OECD test guideline OECD 102 (1995) Melting point / Melting range. The study was performed in accordance with the Principles of Good Laboratory Practice (GLP) and reported with a valid GLP certificate.
Thermal Stability Melting Point / Melting Range: Differential Scanning Calorimetry: The determination of the thermal stability was carried out by differential scanning calorimetry (DSC).
The test item and the standard material (aluminium oxide) were heated up from ambient to the final temperature (500°C) at a constant heating rate (3 K/min) in a defined atmosphere (nitrogen). The quantity of heat absorbed or released was measured and recorded. Closed glass crucibles were used as containers for the test item and the standard to determine the thermal stability. About 12 mg of the test item were used. The test was performed with the purified test item.
Melting point / Melting range: No melting of the test item until the beginning of the exothermic decomposition at a temperature of 160°C was observed.
Reference
Two DSC-measurements in closed glass crucibles showed no endothermic effect until the exothermic decomposition in the temperature range 160 - 500°C, or in the temperature range 165 - 375 °C with an energy of 496 Jig or 585 Jig, respectively.
No melting of the test item until the beginning of the exothermic decomposition at a temperature of 160 °C was observed.
This was proofed by an additional measurement with the capillary method.
Description of key information
No melting of the test item until the beginning of the exothermic decomposition at a temperature of 160 -500°C was observed.
Key value for chemical safety assessment
Additional information
The melting point of the test item was determined according to methods for the determination of physico-chemical properties A.1. Melting point / melting range (DSC) and OECD test guideline OECD 102 (1995) Melting point / Melting range. The determination of the thermal stability was carried out by differential scanning calorimetry (DSC).
The test item and the standard material (aluminium oxide) were heated up from ambient to the final temperature (500°C) at a constant heating rate (3 K/min) in a defined atmosphere (nitrogen). The quantity of heat absorbed or released was measured and recorded. Closed glass crucibles were used as containers for the test item and the standard to determine the thermal stability. About 12 mg of the test item were used. The test was performed with the purified test item.
No melting of the test item until the beginning of the exothermic decomposition at a temperature of 160°C was observed.
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