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EC number: 249-033-4 | CAS number: 28462-17-1
- 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
Stability: thermal, sunlight, metals
Administrative data
Link to relevant study record(s)
- Endpoint:
- thermal stability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- March 22th 2019
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 113 (Screening Test for Thermal Stability and Stability in Air)
- Version / remarks:
- 1981
- GLP compliance:
- no
- Test substance thermally stable:
- no
- Operating temp.:
- ca. 130 - ca. 170 °C
- Remarks on result:
- other: endothermic effect
- Operating temp.:
- ca. 180 - ca. 340 °C
- Remarks on result:
- other: exothermic effect
- Remarks:
- average decomposition energy release of -1410 J/g
- Transformation products:
- no
- Conclusions:
- The DSC-measurements showed an exothermic effect in the temperature range of 180-340°C with an average decomposition energy of -1410 J/g. The test item was black after the DSC-measurements.
- Executive summary:
Two measurements with about 6 mg of the test item in a closed glass crucible under air atmosphere were performed. The upper end of the crucible was closed by melting with an oxyhydrogen flame. The crucible was then re-weighed with an accuracy of 0.01 mg. For the DSC (Differential Scanning Calorimetry) measurements and the evaluation of the heat flux a glass crucible with aluminium oxide was used as reference crucible. The determination of the thermal stability of the test item was performed via DSC. The prepared crucibles (crucible with test item and reference crucible) were placed in the DSC apparatus. Both crucibles were heated up from room temperature to 500 °C with a heating rate of 3 K/min. For the determination of the thermal stability, two investigations were performed.
The DSC-measurements showed an exothermic effect in the temperature range of 180 - 340 °C with an average decomposition energy of -1410 J/g. The test item was black after the DSC-measurements.
Reference
Results of the DSC-measurements
Measurement No. | Sample weight / mg | Start of effect / °C | Energy1)/ J/g |
PN17505 | 6.44 | 130 (endothermic) | 70 |
210 (exothermic) | -1370 | ||
PN17507 | 5.76 | 130 (endothermic) | 60 |
180 (exothermic) | -1440 |
1) Values are rounded
Description of key information
In the temperature range of 130 – 170 °C an endothermic effect could be observed. An exothermic effect was detected in the temperature range of 180 – 340 °C with an average energy release of ‑1410 J/g.
Additional information
Two measurements with about 6 mg of the test item in a closed glass crucible under air atmosphere were performed. The upper end of the crucible was closed by melting with an oxyhydrogen flame. The crucible was then re-weighed with an accuracy of 0.01 mg. For the DSC (Differential Scanning Calorimetry) measurements and the evaluation of the heat flux, a glass crucible with aluminium oxide was used as reference crucible. The determination of the thermal stability of the test item was performed via DSC. The prepared crucibles (crucible with test item and reference crucible) were placed in the DSC apparatus. Both crucibles were heated up from room temperature to 500 °C with a heating rate of 3 K/min. Two runs were performed.
Justification for classification or non-classification
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.
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