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Diss Factsheets
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EC number: 444-900-5 | CAS number: 49667-22-3
- 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
- Endpoint:
- stability: thermal, sunlight, metals, other
- Remarks:
- Migrated from section 'Stability: thermal, sunlight, metals'
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 003
- Report date:
- 2003
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: OECD 113: Screening test for Thermal Stability and stability in air (1981). VDI 2263: "Test Methods for the Determination of the Safety Characteristics of Dusts", May 1990.
- GLP compliance:
- yes
Test material
Reference
- Name:
- Unnamed
- Type:
- Constituent
- Test material form:
- solid: crystalline
Results and discussion
For thermal stability study
- Test substance thermally stable:
- yes
Operating temperature
- Operating temp.:
- > 25 - < 270 °C
- Remarks on result:
- other: Heating rate: 5°C/min
Any other information on results incl. tables
First experiment:
The TG-curve shows loss of mass above 158°C (raw temperature: 161°C); the rate of mass loss increased with increasing temperature. In the DTA-curve an endothermic peak is observed between 174°C and 210°C (raw temperature range: 177°C - 213°C). This effect is caused by melting of the test substance. The extrapolated onset temperature of the melting peak is 184°C (raw temperature: 187°C). Above 210°C (raw temperature: 213°C) an endothermic effect which increased with increasing temperature was observed. This effect, together with the observed mass loss, is probably caused by evaporation of the test substance. Visual inspection of the sample after the experiment learned that the sample had been molten and had almost completely evaporated.
Second experiment:
The TG-curve shows loss of mass above 160°C (raw temperature: 163°C); the rate of mass loss increased with increasing temperature. In the DTA-curve an endothermic peak is observed between 177°C and 208°C (raw temperature range: 180°C- 211°C). This effect is caused by melting of the test substance. The extrapolated onset temperature of the melting peak is 184°C (raw temperature: 187°C). Above 208°C (raw temperature: 211°C) an endothermic effect which increased with increasing temperature was observed. This effect, together with the observed mass loss, is probably caused by evaporation of the test substance. Visual inspection of the sample after the experiment learned that the sample had been molten and had almost completely evaporated.
No indications for instability of the test substance were observed at temperatures below 150°C (423K).
Applicant's summary and conclusion
- Conclusions:
- thermally stable up to 150°C
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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